Zurich Chess Championship

ZURICH 2014 The Strongest Chess Tournament Ever Played

Compiled By Scorpionchess

The strongest tournament in chess history The «Zurich Chess Challenge 2014» was the first encounter between the newly crowned World Champion, Norway’s Magnus Carlsen, and the former title holder, India’s Viswanathan Anand after their recent match in Chennai. From Wednesday, 29 January to Tuesday, 4 February 2014, they competed in the 3rd Zurich Chess Challenge along with four other great chess stars: Levon Aronian (Armenia), Hikaru Nakamura (USA), Fabiano Caruana (Italy) and Boris Gelfand (Israel). The festival include a blitz, classical and rapid tournament. The first will be used to determine the colors and pairings, the two others to determine the winner of the event. The winner will be the one who scores the most points between the classical tournament and the rapid. Can this edition of Zurich top what some consider the best tournament ever held, the legendary Zurich 1953?

According to the January 2014 FIDE ratings these six players average 2800.83 points, which rounds to 2801. That makes the event a category 23, and the strongest tournament in chess history. The main sponsor is Oleg Skvortsov of the «International Gemological Laboratories», Moscow, with the Zurich Chess Club acting as organizer. Skvortsov not only loves chess, but also plays the game and supports chess events. Furthermore, he knows many of the greatest chess players in the world personally and has played a lot of games with them. The first Zurich Chess Challenge in 2012 was a match between Kramnik and Aronian. The second event in 2013 was a double-round robin with Kramnik, Anand, Caruana and Gelfand.

THE PLAYERS

Schedule, rate of play The event is a six player round robin, with a rate of play of 40 moves in 120 minutes, then 20 moves in 60 minutes and the rest of game in 15 minutes, with an increment of 30 seconds per move starting after move 61. Special rule: in case of a draw before move 40, an additional rapid game will be played (which does not count for the overall result).

The tournament takes place in the time-honored Hotel «Savoy Baur en Ville» (Paradeplatz, Zurich, Switzerland) in the «Festsaal», the venue of many a famous chess event in the past.

Brief History of Zurich Chess

By Sagar Shah In 1953, Zurich established itself as one of the most important venues for chess. The Zurich International tournament was held here and the challenger to Botvinnik was to be found in this tournament. It was none other than the great Vasily Smyslov, who won the tournament with 18/28, a whopping two-point margin over David Bronstein, who finished second. Thus Smyslov qualified to challenge Botvinnik in 1954, a match that he tied with 12-12 score but according to the prevailing rules the world champion retained the title! Still, as you can see, Zurich had a great impact on the fate of World Championship, as a challenger was to be sought from here. Secondly, David Bronstein had written an excellent book on the Zurich tournament of 1953, which according to many great chess players is a must read.

Tournament 1953 The Zurich ChessChallenge 2013 tournament marks the sixtieth anniversary of the legendary Candidates' Tournament, won by Vassily Smyslov «The Candidates' Tournament was the last qualification step for the 1954 world championship match against Mikhail Botvinnik. It is still rightly remembered as one of the magical moments in the history of chess: one of the most illustrious and fertile tournaments ever held. The field comprised the entire elite of the day (except, of course, Botvinnik), and the 15 grandmasters faced each other in a grueling double round robin, spanning two full months in mid and late summer 1953... It was the Zurich Chess Club and its president Alois Nagler who assumed the organizational responsibilities...» Excerpt from «The Zurich Chess Club, 1809 - 2009» by Richard Forster (Foreword by Vladimir Kramnik)

Vasily Smyslov Winner of the Candidates’ Tournament 1953 in Neuhausen/Zurich

Geller,E. - Euwe,M. [E28] Candidates' Tournament 1953 (2) Neuhausen, 31.08.1953 [Richard Forster] 1.d4 Sf6 2.c4 e6 3.Sc3 Lb4 4.e3 c5 5.a3 Lxc3+ 6.bxc3 b6 7.Ld3 Lb7 8.f3 Sc6 9.Se2 0-0 10.0-0 Sa5 11.e4 Se8 12.Sg3 cxd4 13.cxd4 Tc8 14.f4 Sxc4 15.f5 f6 16.Tf4 b5! The beginning of a most impressive plan of defense and counterattack. Euwe's cold-bloodedness in the face of White's violent attack on the kingside has deeply impressed chess students ever since. 17.Th4 Db6 18.e5 Sxe5 19.fxe6 Sxd3 20.Dxd3 Dxe6 21.Dxh7+ Kf7 22.Lh6 Th8 There were objectively stronger moves, such as 22. ... Rc4, 22. ... Rc3 and Kasparov's 22. ... Dd5 [22...Dd5 23.Te4 Tc6 24.Tae1 Te6 ] but Euwe's rook sacrifice with the simple aim of making c2 accessible to the other rook, distinguishes this game as one of the most remarkable counterattacks ever played. 23.Dxh8 Tc2 24.Tc1? Unsettled by the unexpectet turn of events, Geller does not realize the danger. For the time being, his move defends against the threat of 24. ... Rxg2 25. Kf1 Qc4+, but with his 25th move Euwe demonstrates that there are other means of reaching the king. [By playing 24.d5 Lxd5 25.Td1 he could have held on, because now 25...Db6+ can be parried by 26.Thd4 , while after 26...Txg2+ 27.Kf1 the position also remains unclear.] 24...Txg2+ 25.Kf1 Db3 26.Ke1 Df3! White resigned as mate is unavoidable. 0-1 Commentary from «The Zurich Chess Club, 1809 - 2009»

by Richard Forster, foreword by Vladimir Kramnik with a chapter on the jubilee festivities with eight living world champions. McFarland & Company, Inc. Publishers

Euwe,M. - Najdorf,M. [E61] Candidates' Tournament 1953 (9) Neuhausen, 31.08.1953 [Richard Forster] 1.d4 Sf6 2.c4 g6 3.g3 Lg7 4.Lg2 0-0 5.Sc3 c5 6.d5 e5!? 7.Lg5 h6 8.Lxf6 Dxf6 9.d6! Sc6 10.e3 b6 11.Ld5 Kh8 12.Se4 Dd8 13.h4 f5 14.Sg5 Lb7 15.g4! e4 16.Se2 Lxb2 17.Sf4 Df6 [As demonstrated by Garry Kasparov, one of the many annotators of this captivating struggle, White also obtains a strong attack after 17...hxg5 18.Sxg6+ Kg7 19.Sxf8 Dxf8 20.hxg5 ; or 17...Lxa1 18.Sxg6+ Kg7 19.gxf5 Lc3+ 20.Kf1 ] 18.gxf5 ! The sober Max Euwe invests a |_hole rook. 18...Lxa1 [Now if 18...gxf5 19.Dh5 ! (Kasparov)] 19.Sxg6+ Kg7 20.Sxe4 The only point when Euwe's play could be improved upon. [The immediate 20.Sf4 ! was stronger, as shown by Bronstein and Kasparov.] 20...Lc3+ 21.Kf1 Dxf5 22.Sf4!! A quiet move of exceptional force. Black is temporarily a rook ahead, but he connot save his bishop c3: 22...Kh8 [22...Le5 23.Sg3 Dh7 24.Dg4+ Kh8 25.Sg6+ Kg7 26.Sh5# ] 23.Sxc3 Tae8 24.Sce2 Tg8 White has a pawn for the exchange and an attack, guaranteeing him excellent winning prospects. [Nevertheless, 24...La6 ! would have put up stiff resistance (Kasparov).] 25.h5! Tg5 26.Sg3 Txg3 27.fxg3 Txe3 28.Kf2 Te8 29.Te1 Txe1 30.Dxe1 Despite much simplification, White's threats remain deadly. 30...Kg7 31.De8 Dc2+ 32.Kg1 Dd1+ 33.Kh2 Dc2+ 34.Sg2 Df5 35.Dg8+ Kf6 36.Dh8+ Kg5 37.Dg7+ Black resigned. A splendid performance by the former world champion. 1-0 Keres,P. - Smyslov,W. [E14] Candidates' Tournament 1953 (24) Zurich, 13.10.1953 [Richard Forster] 1.c4 Sf6 2.Sc3 e6 3.Sf3 c5 4.e3 Le7 5.b3 0-0 6.Lb2 b6 7.d4 cxd4 8.exd4 d5 9.Ld3 Sc6 10.0-0 Lb7 11.Tc1 Tc8 12.Te1 Sb4 13.Lf1 Se4! 14.a3 Sxc3 15.Txc3 Sc6 16.Se5 16...Sxe5!? 17.Txe5 Lf6 18.Th5 g6! Against the threat of 19. Rxh7! Kxh7 20. Qh5+ Kg8 21. Rh3 Bh4 22. Rxh4 f5 23. Qh7+ with a strong attack. 19.Tch3 The rook offer is the logical folloup to his aggressive play. What can Black do against the threatened capture on h7? After deep thought Smyslov hit upon a convincing replay: 19...dxc4 [If the rook sacrifice is acceptetd White could develop a savage attack after: 19...gxh5 20.Dxh5 Te8 with the wily continuation 21.a4!!] As

in the Sicilian Dragon Variation, Black relies on the defensive powers of his dark squared bishop and banks on a counterattack. 20.Txh7 Losing the thread. After Black's simple reply the game is over. [Keres can not now recapture on c4: 20.bxc4 gxh5 21.Dxh5, because his attack is stopped by 21...Le4!; By continuing 20.Dg4! however, White could have stabilized the kingside situation, so that 20...c3 could be met by 21.Lxc3. For instance, 21...Txc3 22.Txc3 Dxd4 23.Dxd4 Lxd4 24.Tc7 (Better than 24.Tg3 Tc8 ) 24...gxh5 25.Txb7 with equality (Bronstein)] 20...c3 21.Dc1 A last attempt to make the attack work. [21.Lxc3 Txc3 22.Txc3 Kxh7; and 21.Lc1 Dxd4 are both hopeless.] 21...Dxd4! 22.Dh6 Tfd8 Everything fits together for Black. White's line-up on the h-file looks very threatening, but after this simple reply it proves worthless. 23.Lc1 Lg7 24.Dg5 Df6 25.Dg4 c2 26.Le2 Td4 27. f4 Td1+ 28.Lxd1 Dd4+ White resigned: 0-1

Smyslov,W. - Bronstein,D. [A12] Candidates' Tournament (11) Zurich 16.09.1953 [Richard Forster] 1.c4 Sf6 2.g3 c6 3.Sf3 d5 4.b3 Lf5 5.Lg2 e6 6.0-0 Sbd7 7.Lb2 Le7 8.Sc3 0-0!? By postponing the standard move 8. ... h6 Bronstein provokes the following complications. 9.Sh4?! Lg4 10.h3 Lh5 11.g4 Expecting 11. ... Bg6, when White obtains a pleasant game with 12. Nxg6 hxg6 13. d4 or 13. e4. However, there follows a nasty surprise: 11...d4! 12.Sb1 [After 12.gxh5 dxc3 13.Lxc3 Sxh5 14.Sf3 Lf6 Black has a comfortable position. The text move, on the other hand, allows a very dangerous piece sacrifice for two pawns.] 12...Lxg4 13.hxg4! Sxg4 14.e4? An intermediate move which could easily lead to fatal punishment. After Nf3 Bd6! Black has a very strong initiative, and after moves such as ...f5, ...Qf6, ...Rae8 and ...e5-e4 it can easily result in a vicious attack (if 15. Bxd4?!, then 15. ... e5! and 16. ... e4) 14...Sxf2? Black obtains a third pawn for the piece while keeping the initiative. [However, both players overlooked that Black could have immediately decided the game in ihis favor with 14...La3!! (Bronstein). After 15.Lxa3 Dxh4 16.Te1 Dxf2+ 17.Kh1 Dh4+ 18.Kg1 the simplest path to victory is 18...Sde5 19.Lxf8 Txf8 , followed by 20. ... Qh2+ and 21. ... f5 with devastating threats. After this missed opportunity the game remains intersting, although its cours is no longer smooth.] 15.Txf2 Lxh4 16.Tf3 Se5 17.Th3 Lg5 18.Sa3 Sg6 19.Sc2 Sf4 20.Th2 d3 21.Se3 Se2+ 22.Kh1 f5 23.exf5 exf5 24.Lf3 Sg3+ 25.Kg1 Lf6 26.Lxf6 Dxf6 27.De1?! f4 Bronstein's initial intention was 27. ... Rae8!, which would probably have given him a decisive advantage. 28.Sg4 Dd4+ 29.Kg2 Tae8 30.Dg1 Db2 31.Dc1 Dd4 32.Dc3 Dd6 [Instead, 32...Dxc3 33.dxc3 d2, still promised a substantial endgame advantage.] 33.c5 Dg6 34.Dc4+ Kh8 35.Th3 h5 36.Kh2 Dh7 37.Sf2 g5!? 38.Dd4+ Kg8 39.Dc4+ Kh8 40.Dd4+ Kg8

Draw agreed. As was later revealed, Smyslov's sealed move was not the expected queen check on c4 but 41 Rg1!?, after which the fire could have flared up again. 1/2-1/2 Reshevsky,S. - Bronstein,D. [E69] Candidates' Tournament (13) Zurich, 22.09.1953 [Richard Forster] 1.d4 Sf6 2.c4 g6 3.g3 Lg7 4.Lg2 0-0 5.Sc3 d6 6.Sf3 Sbd7 7.0-0 e5 8.e4 Te8 9.h3 exd4 10.Sxd4 Sc5 11.Te1 a5 12.Dc2 c6 [Pawn grabbing with 12...Sfxe4 13.Sxe4 Lxd4 is not recommended on account of Bg5] 13.Le3 Sfd7 14.Tad1 a4 The King's Indian Defense and the present variation, in particular, were one of the major theoretical battlegrounds of the tournament. 15.Sde2 The game Euwe-Gligoric saw 15. g4, wheras in Stahlberg-Boleslavsky 15. f4 was tried. Reshevsky's choice is no improvement. Today 15. b4! is considered best. 15...Da5 16.Lf1 [There is nothing to be gained from 16.Txd6 Se5 17.b3 axb3 18.axb3 Lxh3!] 16...Se5 17.Sd4 a3 18.f4 Sed7 19.b3 Sa6 20.Lf2 Sdc5 21.Te3 Sb4 22.De2 Ld7 Strategically, White has been completely outplayed. Black simply threatens 23. ... Re7, followed by ... Rae8. Reshevsky therefore seeks salvation in tactical complications. 23.e5?! dxe5 24.fxe5 Tad8 25.g4 Se6 26.Lh4 Sxd4 27.Txd4 Dc5 28.Tde4 Lh6 29.Kh1 Le6 30.g5 [After 30.Lxd8 Txd8 31.Tg3 Td2 32.De1 Sxa2 the apawn brings about a quick decision.] 30...Lg7 31.Tf4 Lf5 32.Se4!? 32...Lxe4+ Despite mutual time trouble Bronstein is not caught by Reshevsky's devilish trap. [He had a tempting queen sacrifice at his disposal: 32...Dxe5 33.Sf6+ (However, it would have backfired fatally on account of the cunning 33.Txf5 leaving White on top after either 33...Dxf5 (or 33...gxf5 34.Sf6+ Lxf6 35.gxf6 Dxe3 36.Dg2+ ) 34.Sf6+ Lxf6 35.Txe8+ Txe8 36.Dxe8+ Kg7 37.gxf6+) 33...Lxf6 34.Txe5 Lxe5, with a large advantage. ] 33.Tfxe4 Sa6 34.e6 Before Black's knight reaches e6 White liquidates his weak e-pawn. Despite the simplification he stll has two severe handicaps: his useless light squared bishop and the constant danger emanating from Black's far advanced pawn on a3. 34...fxe6 35.Txe6 Tf8 36.Te7 Ld4 37.T3e6 Df5 38.Te8 Sc5 An even stronger line was 38. ... Nb4, threatening 39. ... Nxa2!. 39.Txd8 Sxe6 40.Txf8+ Kxf8 41.Lg3 Dxg5 42.Dxe6 Dxg3 43.Dc8+ Ke7 44.Dg4 Despite bishops of opposite colors, White's game is hopeless. With queens still on the board Black can continually set up new mating threats, and later on he could even allow the exchange of queens as the treat of invading with the king to b2 proves decisive. 44...Dc3 45.Kg2 Db2+

46.De2+ Kd6 47.Kf3 Lc5 48.Ke4 Dd4+ 49.Kf3 Df6+ 50.Kg2 Kc7 51.Df3 Db2+ 52.De2 Dd4 53.Kf3 h5 54.Kg2 g5 55.Kg3 Df4+ 56.Kg2 g4 57.hxg4 hxg4 58.Kh1 Kb6 59.Kg2 Kc7 60.Kh1 Ld6 61.Kg1 Kb6 62.Dg2 Lc5+ 63.Kh1 Dh6+ 64.Dh2 De3 65.b4 Ld4! White lost by overstepping the time limit. After 66.c5+ Ka7 67.Dg2 g3 he would have been caught in a decisive zugzwang.

Averbakh,Y. - Kotov,A. [A55] Candidates' Tournament 1953 (14) Zurich, 23.09.1953 [Richard Forster] The game with the tournament's most beautiful combination. Kotov's "magnet queen sacrifice" has few equals at such a high level.

1.d4 Sf6 2.c4 d6 3.Sf3 Sbd7 4.Sc3 e5 5.e4 Le7 6.Le2 0-0 7.0-0 c6 8.Dc2 Te8 9.Td1 Lf8 10.Tb1 a5 11.d5 Sc5 12.Le3 Dc7 13.h3 Ld7 14.Tbc1 g6 15.Sd2 Tab8 16.Sb3 Sxb3 17.Dxb3 c5 18.Kh2 Kh8 19.Dc2 Sg8 20.Lg4 Sh6 21.Lxd7 Dxd7 22.Dd2 Sg8 23.g4 f5 24.f3 Le7 25.Tg1 Tf8 26.Tcf1 Tf7 27.gxf5 gxf5 28.Tg2 f4 29.Lf2 Tf6 30.Se2 White saw the possibility of 30. Rh6, but overlooked the even stronger main threat. With either 30. h4 Rh6 31. Qe1 of 30. Rg4 he could have defended against both. 30...Dxh3+!! Black does not have an immediate mate, but White's king is drawn deep behind the enemy lines. With his army virtually cut off by pawn barriers, White proves to be helpless even against the rather slow regrouping of Black's forces which now follows. 31.Kxh3 Th6+ 32.Kg4 Sf6+ 33.Kf5 Sd7 threatening 34. ... Rf8 35. Kg4 Rg8+ 36. Kf5 Rf6 mate. [Later Analysis proved that 33...Sg4 would have been even more effective as White's rook move to g5 would have been prevented. As Kxg4 Rg8+ leads to mate, White's only try would have been 34.Sxf4 Tg8 (34...Tf8+ 35.Kxg4 Tg8+ would be inaccurate on account of 36.Sg6+ Tgxg6+ 37.Kf5 Th5+ 38.Tg5 Lxg5 39.Kg4 ) 35.Sh5 (forced) 35...Thg6 36.Dg5 (forced) 36...Lxg5 37.Kxg4 Lf4+ 38.Kh3 Txg2 ] 34.Tg5 Despite severe time trouble Averbakh finds the only way of putting up resistance. Kotov now chose to repeat moves several times in order to adjourn the game after move 40 an work out a winning line at home. White has to comply. 34...Tf8+ 35.Kg4 Sf6+ 36.Kf5 Sg8+ 37.Kg4 Sf6+ 38.Kf5 Sxd5+ Of course, Black cannot allow a threefold repetition of the position and he therefore captures the d-pawn to win time. 39.Kg4 Sf6+ 40.Kf5 Sg8+ 41.Kg4 Sf6+ 42.Kf5 Sg8+ 43.Kg4 Lxg5 In home analysis Kotov found the right path to victory. 44.Kxg5 White has no alternative use of the respite. After other continuations 44. Be7, followed by ... Nf6, wins quickly. 44...Tf7 45.Lh4 The only defense against 45. ... Rg7+ and 46. ... Ne7 mate. But now the king is hemmed in on the h-file. 45...Tg6+ 46.Kh5 Tfg7 47.Lg5 Again the only move, as is easily verified. The king remains in the mating net, however, requiring further largescale sacrificing to fend off the immediate threats. 47...Txg5+ 48.Kh4 Sf6 49.Sg3

Txg3 50.Dxd6 T3g6 51.Db8+ Tg8 White resigned. 0-1

Zurich 2014 : Blitz and Opening Ceremony 1/30/2014 – The players have already thrown around fireworks with an enthralling blitz tournament to open the festivities in Zurich. No one was safe as fighting chess prevailed with the unusual time control of 4 minutes with 2 seconds increment. Caruana and Gelfand beat Carlsen and Nakamura, but these two players recovered quickly and went on a rampage. The Opening Ceremony featured some lovely traditional and classical music, in prelude to a clashing blitz tournament.

All of the players thoroughly enjoyed the performance and seemed rather captivated by it

In the back: Peter Heine Nielsen, Carlsen's second, Henrik Carlsen, Carlsen's father and Vladimir Chuchelov, Caruana's second

Vishy Anand and a giant of chess ages past: Gennadi Sosonko

Sofi Leko, Peter Leko, Yanick Pelletier and Fabiano Caruana enjoying a pleasant chat

World Champion Hou Yifan flew in from China as a guest of honor of the event

The main sponsor Oleg Skvortsov and his wife Natalia The blitz tournament was held as a warm up for the players and to determine the pairings of the event.

Caruana struck a powerful blow by vanquishing Carlsen with a brutal attack on the kingside. A surprising move left the position of the World Champion completely indefensible and he collapsed soon afterwards. Since Carlsen also had rocky games in the next couple of rounds it seemed like he was out of contention. Nakamura lost his first game against Gelfand, but much like Carlsen he recovered and kept climbing in points. Aronian demolished Anand in the first round and seems to keep his good form. The Armenian could have won the tournament had he converted his decisive advantage against Carlsen. The American could also have won the tournament had he held a draw against the World Champion in the last round, but neither of these results happened and some way or another Carlsen won the tournament!

Carlsen,Magnus Caruana,Fabiano Zurich CC Blitz 2014 (1.1) [Houdini 4]

B42 2872 2782 29.01.2014

1.e4 c5 2.f3 e6 3.d4 cxd4 4.xd4 a6 5.d3 c5 6.c3 d6 [ RR 6...e7 7.d2 d6 8.2b3 d7 9.xc5 dxc5 10.f3 g6 11.h4 c7 12.h5 f4 13.f1 e5 14.xf4 exf4 15.h4 0-0 16.d2 f6 17.e5 d8 18.xf4 d5 19.g3 h6 20.d2 e7 21.e6 Vallejo Pons,F (2695)-Kotronias,V (2580) Legnica 2013 1-0 (40) ] [ RR 6...f6 7.e3 d6 8.0-0 e7 9.d2 0-0 10.f4 bc6 11.2b3 a7 12.h1 e5 13.fxe5 xe5 14.f4 f6 15.d2 g6 16.g3 d8 17.xc6 bxc6 18.c4 b8 19.ad1 g4 20.de1 h5 21.h3 Carlsen,M (2802)-Andreikin,D (2683) Moscow 2010 1-0 (45) ] 7.d2 f6 8.0-0 0-0 9.a4N [ RR 9.2b3 a7 10.e3 bd7 11.e2 d5 12.g5 dxe4 13.xe4 c7 14.c2 e8 15.f3 e5 16.e3 d5 17.fe1 e5 18.xd5 xd5 19.d2 7f6 20.f3 g4 21.e2 d7 22.c4 df6 23.h3 xf2 Timman,J (2607)-Bruzon Batista,L (2669) Curacao 2005 ½-½ (42) ] 9...e5 10.4b3 a7 11.c4 e6 12.e2 c6 13.g5 h6 14.h4 g5 15.g3 e7 16.bd2 g6 17.fe1 [ -1.20 Houdini 4 Pro x64 B: 17.e3 f4 18.xf4 exf4 19.d5 xd5 20.exd5 xd5 21.c2 c6 22.d3 f5 23.ae1 f6 24.f3 d7 25.d1 d8 26.d4 d5 27.b3 xb3 28.xb3+ d5 29.e5 xd4 30.cxd4 c6 31.fe1 -0.10/20 ] 17...h5 18.h3 h4 19.h2 g4 20.h1 [ -1.28 Houdini 4 Pro x64 B: 20.e3 gxh3 21.gxh3 xh3 22.h1 xe3 23.xe3 g4 24.f3 f6 25.xf6 xf6 26.c4 e6 27.ad1 ad8 28.f3 g7 29.e3 g8 30.g1 h7 31.d2 d7 32.c2 c5 33.a5 -0.55/18 ] 20...gxh3 [ -0.37 Houdini 4 Pro x64 B: 20...h5 21.g3 g7 22.e3 hxg3 23.fxg3 h8 24.g1 c8 25.ad1 gxh3 26.gf1 xe3 27.xe3 f6 28.e2 g4 29.xg4 xg4 30.a1 d7 31.g1 a5 32.c4 h2 33.xh2 g8 -1.28/18 ] 21.gxh3 xh3 22.g1 g7 23.e3 xe3 24.xe3 g4 25.f3 [ -3.47 Houdini 4 Pro x64 B: 25.xg4 xg4 26.g1 h5 27.f4 h7 28.g5 d1 29.fxe5 dxe5 30.g1 h5 31.g5 d1 32.g1 -0.12/18 ] 25...f6 26.xg4 xf3+ 27.xf3 xg4 28.xh4 [ -4.41 Houdini 4 Pro x64 B: 28.e1 g8 29.f3 e6 30.c2 f6 31.d3 e7 32.g1 h3 33.f2 f6 34.d1 g7 35.a5 ag8 36.d2 h4 37.d1 g2 38.c2 c4 39.h2 e6 -2.89/21 ] 28...xh4 [ -2.79 Houdini 4 Pro x64 B: 28...h8 29.xg6 f3+ 30.g1 xg6 31.f1 xe4 32.g2 xg2 33.xg2 ag8 34.d1 f5+ 35.g3 e6 36.e1 f5 37.f4 e4 38.c4 d5 39.cxd5+ xd5 40.e3 c4 41.c3+ b4 42.a3 h4 43.f1 hg4 44.e1+ c4 45.c3+ d5 46.e2 xf4 47.g3 fg4 48.f2 g2 49.c7 -4.41/20 ] 29.g1 f3 30.xg4+ f6 31.g3 xh2 32.xh2 h8+ 33.g2 ag8 34.c4 [ -3.22 Houdini 4 Pro x64 B: 34.xg8 xg8+ 35.f3 g1 36.e3 e1+ 37.d2 a1 38.b3 g5 39.e3 f6 40.f3 c1 41.d2 h1 42.e3 h4 43.c4 a5 44.d3 b6 45.e6 g3 46.g4 f4 47.c4 c1 48.d3 e1 49.c4 e2 50.d5 e3 51.b4 xc3 52.bxa5 bxa5 53.xd6 -2.66/25 ] 34...xg3+ 35.fxg3 a5 0-1

Gelfand,Boris Nakamura,Hikaru Zurich CC Blitz 2014 (1.2) [Houdini 4]

D20 2777 2789 29.01.2014

1.d4 d5 2.c4 dxc4 3.e4 f6 4.e5 d5 5.xc4 b6 6.d3 c6 7.e3 e6 8.c3 g6 9.ge2 b4 10.e4 4d5 11.0-0 g7 12.f4 xf4 13.xf4 c6 14.e3N [ RR 14.a4 a5 15.b1 0-0 16.b4 c4 17.bxa5 xa5 18.c1 fd8 19.d5 cxd5 20.b5 dxe4 21.xa5 xa5 22.xe4 b3 23.c7 d7 24.c3 h6 25.e3 xa4 26.c5 xc5 27.xc5 e4 28.f4 d3 Gulko,B (2615)-Adianto,U (2535) Philadelphia 1994 0-1 (38) ] 14...0-0 15.f4 d7 16.e2 c4 17.d3 xd3 18.xd3 f6 19.ad1 d5 20.e4 b6 21.c1 ad8 22.a3 h6 23.b3 h8 24.c3 fxe5 25.dxe5 e6 26.g3 c5 27.e4 c6 28.c2 g7 29.h4 e7 30.xd8 xd8 31.d6 g8 32.g2 xg2+ 33.xg2 f5 34.e4 h6 35.g4 xh4+ [ 0.81 Houdini 4 Pro x64 B: 35...e7 36.h1 d4 37.f3 d5 38.d6 a6 39.e1 d3+ 40.f2 d4 41.g3 d3+ 42.h2 f8 43.f5 gxf5 44.gxf5 exf5 45.xf5 h5 46.g2 e7 47.d6 xe5 48.xe5 xd6 49.xh5 0.09/21 ] 36.h3 g5 [ 2.03 Houdini 4 Pro x64 B: 36...d4 37.f6+ xf6 38.exf6 f5 39.gxf5 exf5 40.h1 f7 41.g2 h5 42.g3 xf6 43.h2 d3+ 44.h4 d1 45.d2 g1 46.c3+ e6 47.e2+ d5 48.h3 g4 49.e5 b5 50.b8 a6 51.e5+ c4 52.e6 a5 53.e5 b4 54.a4 g5 55.fxg5 xg5 0.33/23 ] 37.fxg5 g6 38.f6+ xf6 39.xf6 d3+ 40.g2 h4+ [ 3.26 Houdini 4 Pro x64 B: 40...h7 41.gxh6 d4 42.g5 xe5 43.xe6 g6 44.f3 d7 45.e3 f7+ 46.g4 f1 47.b3 e1 48.f5 f1+ 49.e4 f7 50.c1 f8 2.43/21 ] 41.f2 hxg5 42.xg5 h3 43.h6 f3+ 44.e2 b3 45.xh4 xb2+ 46.d3 b5 [ 6.61 Houdini 4 Pro x64 B: 46...h2 47.g5 g2 48.xe6 xg4 49.f6 d4+ 50.c3 f4 51.e7 a6 52.e6 b5 53.xa6 f3+ 54.c2 f7 55.b6 f2+ 56.c3 f3+ 57.d2 xa3 58.xb5 c4 59.c5 d3+ 60.c2 e6 61.xc4 a3 62.c5 f5 63.c3 a1 64.d3 d1+ 65.c4 e6 66.c5 d5+ 67.c6 3.99/20 ] 47.xe6 c4+ 48.c3 [ 4.83 Houdini 4 Pro x64 B: 48.e4 b4 49.axb4 b1 50.c6 f1 51.e6 f8 52.xc4 g7 53.c7+ g6 54.xa7 b8 55.e7 e8 56.c7 b8 57.c5 g8 58.d5 b8 59.e7 f7 60.g5 e8 61.b5 7.60/16 ] 48...b3+ 49.c2 [ 6.10 Houdini 4 Pro x64 B: 49.d4 d3+ 50.c5 c3 51.xb5 c2 52.c6 d5+ 53.b4 xe5 54.xc2 a6 55.c6 e4+ 56.c4 e5 57.a4 a5+ 58.c3 f7 59.d4 e2 60.d5 d2+ 61.e5 h2 62.c7+ g6 63.c6+ f7 64.g3 g2 65.f6+ g7 4.59/18 ] 49...xa3 50.e8+ f7 51.e7+ g6 52.f6 b4 53.g7+ h6 54.c7 [ 5.26 Houdini 4 Pro x64 B: 54.g5+ h5 55.e6 b3+ 56.c3 b2+ 57.xb2 b3+ 58.c2 b8 59.c3 g4 60.xa7 f5 61.e7 e8 62.xc4 e6 63.d4 g8 64.a6+ f7 65.d5 e8 66.a7 g6 67.e6 b8 68.d7 f7 69.c7 a8 70.d4 e8 71.g6+ g8 72.g7 f7 10.23/18 ] 54...c3+ 55.d2 g6 [ 10.42 Houdini 4 Pro x64 B: 55...d3+ 56.e2 d4 57.g5+ g6 58.e3 d1 59.xc4 b3 60.b4 b1 61.d3 f5 62.c3 c1+ 63.xb3 a6 64.a4 c6 65.h4 c1 66.h6 g1 67.c4 g2 68.d5 d2+ 69.c6 g2 70.d6 a5 71.e6 d2+ 72.c5 c2+ 73.d5 d2+ 74.c6 c2+ 75.d7 d2+ 76.e7 e2 77.d4 5.68/21 ] 56.g5 [ 3.28 Houdini 4 Pro x64 B: 56.g7+ h6 57.e6 d3+ 58.c1 e3 59.e7 a6 60.g8 e1+ 61.d2 xe7 62.xe7 b3 63.c3 h7 64.g5 h6 65.b2 h7 66.a5 g6 67.xa6+ f7 68.f6 e8 69.c3 d7 70.xc4 c7 71.xb3 b7 72.e6 10.42/17 ] 56...a5 [ 17.11 Houdini 4 Pro x64 B: 56...f5 57.e6 d3+ 58.e2 xe6 59.xc4 b3 60.c6+

d5 61.c7 g3 62.xa7 b3 63.d2 c4 64.c7+ b5 65.c1 g2 66.b1 a4 67.a7+ b5 68.b7+ c4 69.c7+ b5 70.e7 a6 71.c3 e2 72.f6 3.28/19 ] 57.e6 d3+ 58.e2 d6 59.e7 e6+ 60.d1 1-0

Aronian,Levon Anand,Viswanathan Zurich CC Blitz 2014 (1.3) [Houdini 4]

A39 2812 2773 29.01.2014

1.c4 c5 2.f3 f6 3.c3 c6 4.g3 g6 5.g2 g7 6.d4 cxd4 7.xd4 0-0 8.0-0 a5 9.b3 [ RR 9.c2 d6 10.d2 h5 11.c1 h3 12.e3 xg2 13.xg2 e6 14.c2 d5 15.cxd5 xd5 16.e3 b6 17.c2 d4 18.e4 f5 19.xb7 f7 20.a6 f4 21.f3 fxe3 22.xe3 d5 23.xd5 xd5 Adams,M (2754)-Anand,V (2773) London 2013 ½-½ (61) ] 9...h5 10.c5 [ RR 10.f3 h3 11.g2 ½-½ (13) Ivanchuk,V (2755)-Grischuk,A (2779) Thessaloniki 2013 ] 10...b6 [ RR 10...d8 11.e4 d6 12.xh5 xh5 13.d1 dxc5 14.xd8+ xd8 15.xc5 b6 16.b3 b7 17.e3 xc3 18.bxc3 c8 19.c1 c4 20.f3 c6 21.c2 a4 22.c4 g7 23.c5 b5 24.d2 c8 25.d4 Grischuk,A (2779)-Zvjaginsev,V (2659) Khanty-Mansiysk 2013 1-0 (41) ] 11.e4N [ RR 11.cxb6 axb6 12.e4 xd1 13.xd1 b8 14.f4 a5 15.e5 g4 16.d5 e8 17.h3 h6 18.xa5 bxa5 19.b3 d6 20.a3 b7 21.ac1 dxe5 22.xe7+ h8 23.c6 xc6 24.xc6 ec8 25.d7 xc1 Krogius,N-Jansa,V Sochi 1965 1-0 (36) ] 11...bxc5 [ 1.31 Houdini 4 Pro x64 B: 11...b8 12.f4 xd1 13.fxd1 e5 14.e3 g4 15.cxb6 xe3 16.bxa7 xa7 17.fxe3 c6 18.d5 h6 19.dc1 b4 20.c3 g7 21.xb4 xb4 22.d1 d8 23.a3 b8 24.d6 b7 25.a4 c6 26.a5 0.29/20 ] 12.f3 h3 13.e5 xe5 14.g2 f5 15.xa8 a6 16.g2 xf1 17.xf1 d6 [ 2.14 Houdini 4 Pro x64 B: 17...c4 18.d4 h5 19.de2 f3+ 20.xf3 xf3 21.g2 h5 22.e3 a6 23.h3 e6 24.g4 h4 25.g5 d5 26.xd5 exd5 27.xd5 xb2 28.b1 c3 29.d3 xh3 30.xc3 g4+ 31.f1 h3+ 32.e2 h5+ 33.d2 b8 34.f4 1.27/20 ] 18.f4 d3 [ 3.54 Houdini 4 Pro x64 B: 18...h5 19.xe5 g4 20.h3 xe5 21.f4 d7 22.a6 b6 23.xa7 c8 24.a4 e5 25.e1 exf4 26.xf4 e5 27.g4 xf4 28.gxh5 g3 29.f1 e5 30.hxg6 hxg6 31.a5 d4+ 32.h1 g7 33.c6 xc3 34.bxc3 b6 35.h2 a8 36.b1 c4 2.14/20 ] 19.h3 h5 20.xd3 [ 1.19 Houdini 4 Pro x64 B: 20.g4 xg4 21.xd3 e5 22.e3 g5 23.xe5 xe5 24.a5 g4 25.g2 e6 26.c6 xh2+ 27.f1 f4 28.e2 h5 29.e4 g7 30.d1 f5 31.c3 f6 32.a6 f7 33.c4 f6 3.48/18 ] 20...xh3 21.e2 e8 22.e1 h6 [ 1.49 Houdini 4 Pro x64 B: 22...c4 23.d2 d5 24.g5 f5 25.e5 xe5 26.xe5 e6 27.e2 b8 28.f3 d7 29.e3 a6 30.g2 h6 31.h4 h7 32.g4 h5 33.g5 h8 34.d2 g7 35.g3 f8 36.d4 d6+ 37.g2 0.96/19 ] 23.d2 g5 24.e3 g4 25.f1 e5 26.f4 gxf4 27.xf4 b8 28.b3 e6 29.d2 [ -0.50 Houdini 4 Pro x64 B: 29.e3 g6 30.cd5 e4 31.f2 xf4 32.xf4 e6 33.f3 xf3+ 34.xf3 d4 35.e2 g7 36.c1 f8 37.c4 e7 38.a4 b7 39.a6 d5 40.c6 d4 41.xd4 cxd4 1.44/19 ] 29...d3 30.xd3 xe1+ 31.g2 b4 32.e2 a1 33.c2 [ -0.67 Houdini 4 Pro x64 B: 33.a6 b2 34.c8+ h7 35.f5+ g8 36.c8+ h7 -0.16/22 ]

33...a5 34.c4 [ -0.97 Houdini 4 Pro x64 B: 34.f5 f6 35.c8+ h7 36.a3 b6 37.c7 e6 38.xb6 xe2+ 39.h3 d3 40.a7 e5 41.xf7 exf4 42.xf4 d5 43.f3 g6 44.h4 e6+ 45.f5 c4 46.bxc4 dxc4 47.g4 e2 48.xg7 xg7 49.c7+ g6 50.b6+ f7 51.c7+ f6 52.xa5 f1+ -0.18/20 ] 34...a4 35.d2 axb3 36.axb3 b8 37.f4 [ -2.10 Houdini 4 Pro x64 B: 37.d3 a6 38.f3 b7 39.a5 xf3+ 40.xf3 h7 41.f4 d5 42.e2 e6 43.d1 b6 44.c2 d4 45.g4 e5 46.d3 d6 47.h3 g6 48.f4+ xf4 49.xf4 h5 50.gxh5+ xh5 51.e5 a6 -1.18/21 ] 37...a8 [ -1.15 Houdini 4 Pro x64 B: 37...a8+ 38.h3 f3 39.a5 xb3 40.e2 b1 41.g2 b7+ 42.f3 xf3+ 43.xf3 b5 44.d2 b3+ 45.e2 f8 46.a5 b1 47.d3 e6 48.h5 d5 49.xg7 xg7 50.c6 b3+ 51.c2 f3 -2.10/18 ] 38.h5 [ -3.02 Houdini 4 Pro x64 B: 38.f5 a2 39.d7 f8 40.g4+ g7 41.f3 f6 42.e2 xf3+ 43.xf3 g7 44.c1 a1 45.e4 h7 46.h3 a8 47.d3 f5 48.b6 a1 49.c4 g6 50.d5 f7 51.b4 e6 52.b6 cxb4 53.xb4 b1+ 54.b3 d5 -1.15/20 ] 38...a2 [ 0.02 Houdini 4 Pro x64 B: 38...a2 39.f5 d1 40.c8+ f8 41.f5 xd2+ 42.xd2 xd2+ 43.h3 d1 44.g4+ xg4+ 45.xg4 g7 46.f4 e6 47.f3 f8 48.e3 d5 49.d2 e7 50.d3 d6 51.h5 e5 52.h3 d4 53.b4 e5 54.bxc5+ xc5 55.e2 e4 56.h4 c4 57.f4 c5 -3.02/20 ] 39.e4 xb3 [ 6.82 Houdini 4 Pro x64 B: 39...c3 40.g4+ h8 41.h3 d4 42.e3 a1 43.f3 g8 44.xf7 b1 45.xd4+ cxd4 46.f4 f1+ 47.h4 g1 48.g6+ xg6 49.xg6 xh2+ 50.g4 e2+ 51.h3 f1+ 52.h4 h1+ 53.g4 d1+ 54.f4 f1+ 55.g4 e2+ 56.h3 0.16/21 ] 40.xa8+ 1-0

Caruana,Fabiano Anand,Viswanathan Zurich CC Blitz 2014 (2.1) [Houdini 4]

A07 2782 2773 29.01.2014

1.f3 d5 2.g3 g6 3.g2 g7 4.0-0 e5 5.d3 c6 6.bd2 ge7 7.e4 0-0 8.a3 [ RR 8.e1 e8 9.c3 a5 10.a4 h6 11.exd5 xd5 12.c4 f5 13.b3 xd3 14.fd2 b8 15.e4 f6 16.c5 e4 17.xd3 xd3 18.e3 d5 19.ad1 f5 20.f4 g4 21.h3 xf2 22.e3 c8 Pantsulaia,L (2556)-Landa,K (2642) Nakhchivan 2013 1-0 (36) ] 8...a5 9.b3 h6 10.b2 d4N [ RR 10...e6 11.exd5 xd5 12.e1 d6 13.c4 xc4 14.bxc4 fe8 15.d2 f5 16.e4 d8 17.c5 c8 18.b1 f8 19.e4 d8 20.c1 b8 21.c3 b6 22.b5 cd4 23.xd4 xd4 24.b1 f5 25.c3 Hickl,J (2570)-Gustafsson,J (2566) playchess.com INT 2003 0-1 (44) ] 11.e2 a4 12.b4 a7 13.c4 ec6 14.c1 e6 15.d2 b5 16.h3 d6 17.xd6 cxd6 18.c3 dxc3 19.xc3 a7 20.d4 c8 21.fc1 xh3 22.dxe5 xg2 23.xg2 e6 [ 1.29 Houdini 4 Pro x64 B: 23...e8 24.ab1 e6 25.exd6 xd6 26.xg7 xg7 27.e5 b6 28.b5 ac8 29.xc8 xc8 30.e4 d8 31.c4 c6 32.xa4 d4 33.xd4 xd4 34.b3 d2 35.f3 h5 36.f4 0.47/19 ] 24.exd6 xc3 [ 2.52 Houdini 4 Pro x64 B: 24...xd6 25.e3 c6 26.b5 a5 27.b4 d7 28.xf8 xf8 29.ab1 b3 30.d1 xb5 31.d4 xd4 32.xd4 h5 33.b4 c6 34.d1 e8 35.b6 c2 36.d3 xd3 37.xd3 g7 1.12/15 ]

25.xc3 xd6 26.d1 e7 [ 3.11 Houdini 4 Pro x64 B: 26...b6 27.d2 g5 28.e5 e6 29.d7 fe8 30.f3 c6 31.f6+ g7 32.xe8+ xe8 33.b5 e5 34.c3 f6 35.d4 h5 36.xa4 h4 37.gxh4 gxh4 38.d4 b6 39.g1 h7 40.f1 g7 41.a4 g8 42.e3 2.52/20 ] 27.e5 [ 1.73 Houdini 4 Pro x64 B: 27.e3 h7 28.cd3 c6 29.d7 e8 30.xb7 b8 31.c7 d8 32.d5 c8 33.cd7 b8 34.7d6 c6 35.xc6 xc6 36.b5 e7 37.c5 c8 38.e5 e6 39.d4 d6 40.c3 e7 41.c7 3.11/18 ] 27...c6 28.e3 [ 1.10 Houdini 4 Pro x64 B: 28.b5 d8 29.e3 h5 30.g5 e6 31.e4 g7 32.d6 fd8 33.e4 g8 34.c4 g5 35.d5 e6 36.cc1 b6 37.c4 h7 38.f3 g8 39.e3 c5 40.f4 f8 41.f6 ad8 42.d4 d7 1.65/19 ] 28...d8 [ 2.23 Houdini 4 Pro x64 B: 28...ad8 29.b5 xd1 30.xd1 d8 31.d3 e6 32.xa4 c5 33.b4 e8 34.d5 b6 35.d6 b7 36.f4 g5 37.f5 e6 38.c6 a8 39.d3 d8 40.d6 1.10/20 ] 29.d4 [ 1.18 Houdini 4 Pro x64 B: 29.ed3 e6 30.d7 e8 31.e3 h5 32.xb7 c6 33.b6 c2 34.d3 ac8 35.d2 h4 36.e4 c4 37.f6+ g7 38.xe6 fxe6 39.d7+ f7 40.a7 xd7 41.xd7+ h6 42.g8+ h5 43.h7+ g5 44.e7+ f5 45.f6+ g4 46.xh4+ f5 47.f6+ g4 48.xe6+ g5 49.f6 2.23/20 ] 29...a6 30.b5 b6 31.c4 e6 32.xe6 xe6 33.d5 [ 0.40 Houdini 4 Pro x64 B: 33.f4 a8 34.c3 e8 35.d5 e7 36.d4 g7 37.c2 h5 38.d2 c8 39.xa4 ec7 40.d4 e6 41.d6 c4 1.01/17 ] 33...d8 34.xd8+ xd8 35.d3 e7 [ 4.49 Houdini 4 Pro x64 B: 35...g5 36.f4 f5 37.d7 e8 38.d6 e6 39.b6 g7 40.xe6 xe6 41.xe6 fxe6 42.f2 g5 43.fxg5 hxg5 44.f3 f7 45.e4 e7 46.g4 d7 47.d4 0.37/17 ] 36.c8+ h7 [ 11.34 Houdini 4 Pro x64 B: 36...g7 37.f4 h5 38.d8 xe5 39.fxe5 xe5 40.xb7 e2+ 41.h1 f1+ 42.h2 e2+ 43.g2 xb5 44.d2 e5 45.d4 xd4 46.xd4 f6 47.xa4 e5 48.g2 4.55/13 ] 37.d8 [ 0.03 Houdini 4 Pro x64 B: 37.d7 b6 38.xe7 xe7 39.d8 b7 40.d5 e7 41.d6 b7 42.c6 e7 43.xb6 h5 44.d4 c7 45.xa4 b7 46.c4 e7 47.b6 g7 48.d4 h4 49.gxh4 f8 50.a4 e8 51.a5 d7 52.e4 11.34/18 ] 37...xe5 38.d7 e6 39.xb7 f5 40.d2 b3 41.b6 f6 42.a7 [ -12.24 Houdini 4 Pro x64 B: 42.d4 xb6 43.e7 b5 44.xa4 f5 45.f4 xf4 46.gxf4 g7 47.e5+ h7 48.e7 g7 -0.14/22 ] 42...xb6 [ -0.14 Houdini 4 Pro x64 B: 42...f3+ 43.g1 e6 44.a6 e1+ 45.f1 xf1+ 46.xf1 xa3 47.g2 b3 48.d7 xb6 49.xf7+ g8 50.f3 g7 51.c3 d6 52.c1 a3 53.a1 d5+ 54.h3 a2 55.f4 h5+ 56.g2 e2+ 57.g1 b2 58.f1 a1 59.xa1 xa1+ 60.f2 d4+ 61.f3 d3+ 62.f2 e4 -12.24/19 ] 43.d4 [ -1.14 Houdini 4 Pro x64 B: 43.d8 g5 44.a8 c4 45.h8+ g6 46.g8+ h7 47.h8+ g6 -0.14/20 ] 43...f6 44.a8 [ -3.90 Houdini 4 Pro x64 B: 44.xa4 f3+ 45.h2 h5 46.f4 xf4 47.gxf4 xf4+ 48.h3 g4+ 49.h2 h4+ 50.g1 g5+ 51.h2 e5+ 52.g2 d5+ 53.g3 d6+ 54.g2 g7 55.a4 d5+ 56.f3 g5+ 57.h3 e5 -1.03/16 ] 44...b2 45.f4 xf4 46.gxf4 xa3 47.e8 [ -4.54 Houdini 4 Pro x64 B: 47.f5 g5 48.e4 h5 49.f6+ h6 50.e8 b3 51.g8 d5+ 52.g1 d1+ 53.g2 g4+ 54.f1 c4+ 55.g1 c1+ 56.g2 c6+ 57.g1 xf6 58.e8 f4 59.h8+ g6 60.g8+ f6 61.h8+ f5 62.c8+ e4 63.c6+ d3

64.d5+ c3 65.a5+ b4 66.e5+ d4 67.a5+ b3 68.b5+ a3 69.g2 g4+ 70.f1 h4 -3.35/20 ] 47...b3 0-1

Nakamura,Hikaru Aronian,Levon Zurich CC Blitz 2014 (2.2) [Houdini 4]

E30 2789 2812 29.01.2014

1.d4 f6 2.g5 d5 3.e3 bd7 4.c4 e6 5.c3 h6 6.h4 [ RR 6.xf6 xf6 7.f3 e7 8.d3 dxc4 9.xc4 a6 10.0-0 c5 11.e5 0-0 12.b3 c7 13.c1 b6 14.f4 b7 15.f5 d6 16.fxe6 xe5 17.exf7+ h8 18.dxe5 xe5 19.e2 d5 20.d3 ad8 Fressinet,L (2693)-Mastrovasilis,D (2584) Aix-les-Bains 2011 1-0 ] 6...b4 7.cxd5 exd5 8.a3N [ RR 8.d3 0-0 9.f3 e8 10.0-0 c6 11.c2 a5 12.a3 xc3 13.bxc3 e4 14.c4 f8 15.cxd5 cxd5 16.fb1 a6 17.e5 f6 18.c4 dxc4 19.xe4 xe4 20.xe4 f5 21.xb7 xb1 22.xb1 d8 Guimard,C-Pilnik,H Argentina 1938 1-0 (43) ] [ RR 8.d3 c5 9.f3 a5 10.c2 c4 11.f5 xc3+ 12.bxc3 0-0 13.0-0 e8 14.d2 a6 15.ab1 b5 16.fe1 c6 17.f3 a6 18.e4 b6 19.xc8 axc8 20.xf6 xf6 21.f1 g6 22.g3 c6 Najdorf,M-Pelikan,J Mar del Plata 1945 ½-½ (40) ] 8...xc3+ 9.bxc3 c5 10.d3 a5 11.e2 cxd4 12.0-0 [ -0.41 Houdini 4 Pro x64 B: 12.exd4 b6 13.g3 e4 14.0-0 0-0 15.xe4 dxe4 16.c4 e8 17.f4 a6 18.b3 ac8 19.fc1 e6 20.d5 f6 21.b4 g5 22.e3 xb4 23.axb4 xc4 24.xa7 e5 25.c3 0.21/20 ] 12...dxe3 13.fxe3 0-0 14.d4 e4 15.e7 [ -0.74 Houdini 4 Pro x64 B: 15.f5 dc5 16.e7+ h7 17.c2 e6 18.xd5 f5 19.c4 f7 20.e1 a6 21.d4 b6 22.b4 e8 23.ac1 c8 24.xc5 bxc5 25.d1 d7 26.b1 a6 27.xe4 xe4 0.01/18 ] 15...e8 16.b4 d8 17.a4 [ -1.49 Houdini 4 Pro x64 B: 17.xe4 dxe4 18.b5 e5 19.d6 e6 20.xe4 c7 21.d4 c6 22.d5 e5 23.xe5 xe5 24.d6 f6 25.c4 xe3 26.f2 d3 27.fd1 e5 28.xd3 xd3+ 29.e3 e5 30.d1 g4+ 31.d4 xh2 -0.53/18 ] 17...a5 18.a3 df6 19.c4 e6 [ -0.48 Houdini 4 Pro x64 B: 19...g4 20.e2 ef6 21.c2 c7 22.g3 dxc4 23.xc4 d7 24.f4 ac8 25.b2 c6 26.b3 b6 27.d3 e6 28.d4 e5 -1.82/16 ] 20.c5 [ -1.11 Houdini 4 Pro x64 B: 20.xe6 xe6 21.b2 dxc4 22.xc4 d6 23.d4 c8 24.d3 c7 25.a2 c6 26.ad1 d8 27.b3 b6 28.g3 e8 29.f4 c5 30.xc5 xc5 31.xf6 gxf6 32.g6+ h8 33.xf7 -0.48/19 ] 20...d7 21.h3 c7 [ -1.62 Houdini 4 Pro x64 B: 21...e5 22.b1 c3 -1.03/18 ] 22.f3 [ -3.02 Houdini 4 Pro x64 B: 22.b5 xh3 23.xe8 xe8 24.f3 d7 25.f4 c8 26.f5 xf5 27.xf5 c6 28.fe1 g3 29.f3 fe4 30.b2 g6 31.d1 g5 32.d4 c8 33.ac1 f6 34.d1 f5 35.f3 -1.62/17 ] 22...xc5 [ -1.33 Houdini 4 Pro x64 B: 22...g5 23.xf6 gxf6 24.e1 e5 25.b5 xb5 26.axb5 xe3+ 27.xe3 xe3 28.f5 c3 29.e7+ h7 30.xd5 d3 31.e7 e8 32.c6 xa3 33.xa3 xe7 34.xa5 bxc6 35.bxc6 c7 36.a6 g6 37.b6 e4 38.f1 f5 39.e2 f6 40.e3 e5 41.b5+ e6 -3.02/18 ] 23.c1 b6 24.f5 fe4 25.b2 [ -2.55 Houdini 4 Pro x64 B: 25.xe4 dxe4 26.f4 e5 27.xc5 xc5 28.xc5 bxc5

29.b5 c6 30.d2 e8 31.f1 e6 32.xa5 a8 33.c7 xc7 34.xc7 xa4 35.xe6 fxe6 36.f2 c4 37.g3 h7 38.f7 a2 39.c7 -1.64/18 ] 25...ad8 [ -1.82 Houdini 4 Pro x64 B: 25...d6 26.b5 xb5 27.axb5 a4 28.xe4 xe4 29.f5 d8 30.d4 e6 31.h5 xd4 32.exd4 e3+ 33.h2 xc1 34.dxc5 xc5 35.xf7+ h7 36.f6 d4 37.g6+ h8 38.f7 g8 39.b7 xb5 40.xb6 e5+ 41.g3 e4 42.b4 a8 43.c7 -2.55/17 ] 26.f4 [ -2.34 Houdini 4 Pro x64 B: 26.b5 xb5 27.axb5 d6 28.c2 f6 29.d4 a4 30.g6 e7 31.a2 h8 32.d1 c7 33.xc5 xc5 34.f5 e5 35.d4 b3 36.xa4 c1+ 37.f2 -1.82/16 ] 26...f6 [ -1.74 Houdini 4 Pro x64 B: 26...e5 27.xd7 xd7 28.c2 xa4 29.a1 f6 30.f5 e6 31.h5 ac5 32.d4 h7 33.h4 f7 34.xg7 xh5 35.xh5 d6 36.f4 a4 37.h5 ed8 38.a2 g7 39.h4 b5 40.g4+ f7 41.g6 e6 42.xh6 xd4 43.exd4 -2.34/18 ] 27.g6 e7 28.f5 [ -3.11 Houdini 4 Pro x64 B: 28.b5 xb5 29.axb5 d7 30.b1 d6 31.g4 e6 32.xe4 xe4 33.c1 c5 34.d4 c8 35.c2 cc7 36.g6 h8 37.d1 b3 38.b2 c5 39.a3 f5 40.xe6 xe6 41.xc5 fxg4 -2.26/19 ] 28...xf5 29.xf5 d6 [ -0.33 Houdini 4 Pro x64 B: 29...g3 30.f3 xf5 31.xf5 xe3 32.d2 g3 33.xd5 de8 34.d8 xd8 35.xd8+ h7 36.d2 d3 37.d4 e4 38.f2 xf2 39.xf2 xf2+ 40.xf2 xa4 41.e3 a2 42.b1 xg2 43.xb6 g3+ 44.f4 xh3 45.g4 d3 46.a6 -3.33/18 ] 30.xd5+ h8 [ 0.25 Houdini 4 Pro x64 B: 30...f7 31.f3 g5 32.f2 c6 33.d4 e8 34.xd8 xd8 35.g3 c7 36.xc7 xc7 37.a3 f7 38.f2 d6 39.g6 de4+ 40.f3 d2+ 41.f2 db3 42.d1 -0.43/18 ] 31.b1 xe3 [ 24.95 Houdini 4 Pro x64 B: 31...b7 32.h5 de4 33.xf6 gxf6 34.xh6+ g8 35.xf6 xf6 36.xf6 e4 37.a2+ h7 38.h4+ g7 39.g4+ h6 40.h4+ g6 41.g4+ h7 42.h5+ g7 43.g4+ h6 0.10/19 ] 32.xf6 de4 [ #1 Houdini 4 Pro x64 B: 32...xh3 33.gxh3 f7 34.xf7 g3+ 35.g2 xg2+ 36.xg2 g8 37.c2 b5 38.axb5 a4 39.f5 a3 40.xa3 b3 41.c8 xc8 42.xc8 g8 43.f8+ h7 44.b6 a5 45.f5+ g6 46.f7+ g8 47.xg6 h5 48.xh5 c6 49.b7 h8 50.f3 b8 51.f8+ g7 52.xb8 h7 53.g8 xg8 54.b8+ g7 55.e5+ g6 56.e4+ h6 57.f6+ 26.03/19 ] 33.xh6# 1-0

Carlsen,Magnus Gelfand,Boris Zurich CC Blitz 2014 (2.3) [Houdini 4]

A48 2872 2777 29.01.2014

1.d4 f6 2.f3 g6 3.g5 g7 4.bd2 0-0 5.c3 d6 6.e4 c5 7.dxc5 dxc5 8.c4 c6 9.0-0 c7 [ RR 9...h6 10.h4 h5 11.e1 g4 12.c2 c7 13.g3 xg3 14.hxg3 h5 15.h4 e5 16.f1 ad8 17.c4 h6 18.f4 xc4 19.xc4 e6 20.e2 xe2 21.xe2 d7 22.e5 fd8 23.f3 c6 24.e4 Vitiugov,N (2734)-Safarli,E (2660) Khanty-Mansiysk 2013 0-1 (80) ] 10.e2 a5 11.e5N

[ RR 11.d3 e6 12.c4 c6 13.e3 ad8 14.c4 xc4 15.xc4 b5 16.xc5 xe4 17.xb5 b8 18.e2 b7 19.d1 xg5 20.xg5 fd8 21.c1 e5 22.c2 d5 23.c4 a5 24.c3 c6 25.f3 f5 Huebner,R (2603)-Cvitan,O (2554) Switzerland 2010 ½-½ ] [ RR 11.d3 h6 12.xf6 exf6 13.c4 e6 14.e3 ad8 15.fd1 a6 16.c4 fe8 17.ac1 c6 18.b1 xd1+ 19.xd1 d8 20.d5 b8 21.h3 h5 22.e3 b6 23.c2 h8 24.a3 a5 25.b3 c6 Trifunovic,P-Bannik,A Rijeka 1963 ½-½ (32) ] 11...xc4 12.xc4 d5 13.e4 e6 14.fe1 ad8 15.h4 fe8 16.ad1 f6 17.h6 h8 18.h3 b5 19.cd2 f5 20.e4 c6 21.g3 c8 22.e4 b7 23.h4 b6 24.xd8 xd8 25.exf6 xf6 26.e2 c4 27.a4 a6 28.axb5 axb5 29.c2 e5 30.e4 [ -1.49 Houdini 4 Pro x64 B: 30.e4 xf3+ 31.gxf3 xh4 32.e2 e5 33.e3 c4 34.c5 xf3 35.xb7 xb7 36.xe5 f7 37.g2 b4 38.cxb4 xf2+ 39.h3 f6 40.e6+ xe6+ 41.xe6 f7 42.c6 f6 43.c7+ e6 44.c6+ d6 45.xc4 xb2 46.e4+ e5 47.f4 f5 48.xe5+ xf4 49.c5 d3+ 50.h4 b3 51.c4+ f5 52.c5+ e4 53.c7 h5 54.g5 -0.55/20 ] 30...xe4 [ -0.79 Houdini 4 Pro x64 B: 30...e6 31.xb7 xf3+ 32.gxf3 xe1+ 33.g2 e6 34.xb5 xh4 35.xc5 xg3 36.a5 b8 37.xg3 f7 38.b4 c8 39.d2 h5 40.g5 c4 41.b5 h4+ 42.g2 h3+ 43.h2 d6+ 44.xh3 c5 45.f4+ xf4 46.xf4 xb5 47.e3 b3 48.d4 e6 49.g4 b1 50.e3 d5 51.g5 g1+ 52.h6 g2 53.g5 e6 54.xg6 xf2 55.f4 f3 56.c4+ xc4 57.f6 d5 58.e7 -1.49/20 ] 31.xe4 xe4 32.xe4 [ -1.13 Houdini 4 Pro x64 B: 32.xe5 xe5 33.g4 xc3 34.bxc3 d5 35.xe7 b4 36.g7+ h8 37.c7 b3 38.xc5 b2 39.b5 b3 40.xb3 d1+ 41.g2 b1 42.xb1 xb1 43.e3 g7 44.g3 f7 45.f4 e6 46.g5 e5 47.d4+ d5 48.f4 e4 49.f5 b5 50.h6 gxf5 51.gxf5 xf5 52.xh7 f3 53.g6 -0.24/22 ] 32...d1+ 33.h2 xf3+ 34.gxf3 b1 35.e2 b4 [ -0.53 Houdini 4 Pro x64 B: 35...xh4 36.e3 c4 37.d4 f7 38.f4 h5 39.g2 f6 40.xf6 xf6 41.f3 e6 42.d2 c1 43.g2 f5 44.f3 h1 45.e2 h3+ 46.g2 d3 47.e5+ xf4 48.xb5 d2 49.b6 e5 50.g3 f5 51.f3 g5 -1.06/24 ] 36.e3 bxc3 37.bxc3 c4 38.c5 xc3 39.xe7 [ -1.10 Houdini 4 Pro x64 B: 39.e4 c1 40.xe7 c2 41.c5 f6 42.d4 xd4 43.xd4 c3 44.c4 f7 45.c6 e7 46.g3 d7 47.c4 e6 48.f4 d5 49.c7 d4 50.d7+ c4 51.e3 c1 52.c7+ b3 53.b7+ c2 54.xh7 e1+ 55.f4 c1 56.g7 c2 57.xg6 h1 58.h6 d2 -0.45/21 ] 39...f6 [ -0.45 Houdini 4 Pro x64 B: 39...b8 40.e3 c8 41.g3 f6 42.a7 c3 43.f4 c2 44.c1 h5 45.f5 gxf5 46.a5 f7 47.xf5 g6 48.a5 c6 49.f4 c3+ 50.f2 xh4+ 51.e2 d8 52.f5+ f6 53.d5 c8 54.d2 h4 55.b2+ f7 56.d7+ e8 57.g7 h3 -1.10/22 ] 40.e4 [ -1.12 Houdini 4 Pro x64 B: 40.e6 f7 41.c6 b5 42.g2 c3 43.f1 b2 44.e3 a2 45.e1 e7 46.c4 h5 47.d1 f6 48.e4 c2+ 49.d2 e7 50.f4+ e6 51.e4+ d7 52.g5 a3 -0.45/21 ] 40...c3 41.e3 b5 [ -0.45 Houdini 4 Pro x64 B: 41...b7 42.c4 c7 43.xc7 e5+ 44.g2 xc7 45.f1 d8 46.e2 xh4 47.d4 c2 48.d2 f7 49.xc2 f6 50.d3 h5 51.e3 h4 52.e4 h3 53.f4 d8 54.g3 e6 55.h2 b6 56.g3 g5 -1.02/19 ] 42.g3 f7 43.c4 b7 44.c6 d7 45.f4 ½-½

Gelfand,Boris Caruana,Fabiano Zurich CC Blitz 2014 (3.1) [Houdini 4]

E11 2777 2782 29.01.2014

1.d4 e6 2.c4 b4+ 3.d2 d5 4.a4+ c6 5.e3 [ RR 5.gf3 d7 6.c2 f6 7.e3 0-0 8.a3 d6 9.b4 a6 10.b2 dxc4 11.xc4 b5 12.ce5 e7 13.xd7 xd7 14.d3 a5 15.bxa5 g6 16.h4 fc8 17.h5 f8 18.e4 e8 19.0-0 h6 Riazantsev,A (2708)-Rakhmanov,A (2602) Khanty-Mansiysk 2013 1-0 (40) ] 5...f6 6.gf3 0-0 7.a3 d6N [ RR 7...e7 8.b4 a6 9.c2 dxc4 10.xc4 d6 11.b2 e7 12.e5 b8 13.e2 d7 14.f3 a5 15.xd7 xd7 16.bxa5 xa5 17.0-0 a7 18.c4 e7 19.fc1 c6 20.a4 c7 21.a5 bd7 22.b3 Epishin,V (2635)-Adams,M (2655) Ter Apel 1995 ½-½ (34) ] [ RR 7...xd2+ 8.xd2 e4 9.c2 xd2 10.xd2 f6 11.c3 e8 12.d1 d7 13.e2 dxc4 14.xc4 e7 15.0-0 e8 16.d2 e5 17.d5 b8 18.fd1 d6 19.g5 d7 20.e4 g6 21.b4 b6 22.b3 Gurevich,M (2635)-Asrian,K (2634) France 2007 1-0 (43) ] [ RR 7...xd2+ 8.xd2 e4 9.d1 d7 10.c2 e8 11.d3 f5 12.c1 h5 13.e2 a5 14.b3 f6 15.g1 xe2 16.xe2 h6 17.f4 g5 ½-½ (17) Malakhatko,V (2549)-Bauer,C (2610) Cannes 2010 ] 8.c5 e7 9.b4 a6 10.b2 e4 11.d3 f5 12.b5 b8 13.e5 [ -0.47 Houdini 4 Pro x64 B: 13.e2 xd2 14.xd2 d7 15.0-0 e8 16.a5 xb5 17.xb5 xb5 18.xc7 d7 19.fb1 c6 20.xc6 bxc6 21.f3 ab8 22.c3 f6 23.a5 e5 24.c7 xb1+ 25.xb1 exd4 26.exd4 f7 27.f4 e8 28.b7 0.09/19 ] 13...d7 14.df3 f6 15.c6 b6 16.c2 axb5 17.xb5 d6 18.a4 xb5 19.axb5 xa1+ 20.xa1 d6 21.0-0 bxc6 22.xc6 d7 23.fe5 xc6 24.xc6 a8 25.c3 c4 26.b4 d7 27.c3 d6 28.xd6 xd6 29.a1 xa1+ 30.xa1 f4 31.a8+ f7 32.a7 fxe3 33.fxe3 g6 34.c5 d7 35.c2+ h6 36.g3 d6 37.c5 d7 38.g2 f7 39.c1 g5 40.f1 g6 41.f3 g7 42.e2 e4+ 43.g1 [ -1.12 Houdini 4 Pro x64 B: 43.h3 h5 44.xh5 xe3 45.g4 f8 46.h5 e4 47.g4 h7+ 48.g2 c2+ 49.h3 f7 50.h5+ g7 51.g4 h7+ 52.g2 c2+ 53.g1 b2 54.xe6 xd4+ 55.h1 a1+ 56.g2 a2+ 57.h3 f6 58.d7+ g6 59.xc7 e2 60.c8 f1+ 61.g4 d1+ 62.h3 -0.10/22 ] 43...g4 44.f2 [ -16.65 Houdini 4 Pro x64 B: 44.f2 h5 45.e1 b1+ 46.d2 b2+ 47.d1 c3 48.d2 b3+ 49.e1 xb5 50.c2 a6 51.c3 a2 52.b4 a5 53.d2 g6 54.e2 h6 55.d2 c5 56.dxc5 xc5 57.d3 c4 58.b4 xb4 59.xb4 g5 60.c6 h4 61.d3 hxg3 62.hxg3 f5 63.d4+ xd4 64.xd4 f6 65.e4 dxe4 66.xe4 -1.09/22 ] 44...g5 0-1

Aronian,Levon Carlsen,Magnus Zurich CC Blitz 2014 (3.2) [Houdini 4]

A46 2812 2872 29.01.2014

1.d4 f6 2.f3 b5 [ 0.68 Houdini 4 Pro x64 B: 2...d5 3.f4 f5 4.e3 e6 5.d3 xd3 6.xd3 d6 7.0-0 0-0 8.a3 h6 9.bd2 c6 10.h3 a6 11.e5 xe5 12.xe5 xe5 13.dxe5 d7 0.02/20 ] 3.e4 xe4 4.xb5 e6 5.0-0 e7 6.e1 f6N [ RR 6...b7 7.bd2 f5 8.xe4 xe4 9.d2 b7 10.h5+ g6 11.h6 f7 12.c4 f6 13.e5+ g8 14.c4 d5 15.d3 g7 16.h3 d7 17.f3 e7 18.h6 f6 19.xg7 xg7 20.g3 e4 21.e5+ Kuppe,W-Ernst,W Bad Saarow 1937 1-0 (32) ]

7.c4 0-0 8.c3 a6 9.f4 c6 10.xa6 xa6 11.e5 c8 12.f3 b4 13.ad1 d6 14.g4 xg4 15.xg4 h8 [ 1.36 Houdini 4 Pro x64 B: 15...d8 16.h6 g6 17.d2 d5 18.c5 f8 19.xf8 xf8 20.h4 b8 21.h5 a6 22.a3 c7 23.f3 b5 24.d1 g5 25.a4 c7 26.c3 a5 27.f6 d8 28.e5 0.59/19 ] 16.e3 f5 [ 2.73 Houdini 4 Pro x64 B: 16...d8 17.a3 a6 18.h3 d7 19.f3 f8 20.b4 h6 21.c5 dxc5 22.dxc5 xd1+ 23.xd1 c7 24.d4 g8 25.d6 d5 26.g3 g6 27.xd5 exd5 1.35/18 ] 17.e2 f6 18.e1 [ 1.53 Houdini 4 Pro x64 B: 18.a3 a6 19.d5 e5 20.g5 f7 21.xe7 xe7 22.dxc6 xc6 23.f3 xf3 24.xf3 g6 25.xd6 c7 26.fd3 g7 27.c5 e4 28.d1 e8 29.d7 f7 30.b4 c8 31.h3 f6 32.7d6 e3 2.18/19 ] 18...f8 19.a3 a6 20.xe6 xe6 21.xe6 xe6 22.xe6 c7 23.e2 g8 24.f3 f7 25.f1 g6 26.g3 d8 27.e1 g7 28.d2 h6 29.d3 d7 30.d5 cxd5 31.xd5 xd5 32.xd5 c1 33.b5 c7 34.xd6 xc4 35.e5 e3 36.c3 b6 37.e2 e6 38.e5+ d6 39.e8 c6 40.b4+ d5 41.c3 [ 0.07 Houdini 4 Pro x64 B: 41.d3 c1 42.e1 xe1 43.xe1 h5 44.d2 a6 45.e3 c7 46.h3 e5 47.b4 d6 48.g5 e5 49.h4 d4 50.f4 f6 51.g3 0.73/23 ] 41...c4 42.a4 b3 43.a5 c5 44.b8+ c2 45.b7 h5 46.e1 e6+ 47.f1 d4 48.b4 d3 49.f2 xf2 50.xf2 h4 51.xa7 e2+ 52.f1 b2 53.d7+ e3 54.e7+ d3 55.e1 h3 [ 3.80 Houdini 4 Pro x64 B: 55...a2 56.c1 a3 57.h3 a4 58.c6 xb4 59.xg6 a4 60.a6 a1+ 61.f2 a2+ 62.g1 d4 63.f6 e3 64.b6 d4 65.d6+ e5 66.h6 d5 67.h2 e5 68.c6 d5 69.f6 e5 70.h6 d5 71.f6 e5 1.03/22 ] 56.gxh3 [ 2.51 Houdini 4 Pro x64 B: 56.a1 xb4 57.a6 b8 58.a7 a8 59.gxh3 e3 60.g2 f4 61.a4+ g5 62.h4+ f6 63.g3 g7 64.f4 f7 65.a6 e8 66.e5 f7 67.d6 f4 68.c7 e7 69.b7 3.80/18 ] 56...xh2 [ 4.99 Houdini 4 Pro x64 B: 56...a2 57.e6 b2 58.a6 xb4 59.xg6 e3 60.h4 xh4 61.g2 h7 62.g3 d4 63.h4 e5 64.b6 g7+ 65.f2 a7 66.h5 f4 67.h6 d4 68.e2 e7+ 69.d2 h7 70.d6+ e5 71.g6 d4 72.e2 c7 73.d6+ c5 74.d1 e7+ 75.f2 2.51/21 ] 57.g1 [ 2.81 Houdini 4 Pro x64 B: 57.b5 a2 58.a6 a3 59.b1 c2 60.b6 xb1 61.a7 xf3+ 62.g2 b3 63.a8 xb6 64.d5 b2+ 65.g3 c2 66.f4 b2 67.e6 c3 68.xg6 f2+ 69.e3 f1 70.c6+ b4 71.e2 a1 72.d6+ b3 73.d3+ b4 74.xf5 4.99/17 ] 57...a2 58.h4 a4 59.b5 xa5 60.b1 [ 0.02 Houdini 4 Pro x64 B: 60.b6 b5 61.e6 b4 62.f2 xh4 63.xg6 b4 64.d6+ c4 65.g3 b5 66.b7 c5 67.d7 c6 68.h7 d6 69.f7 e5 70.g7 b3 71.h7 b2 72.f4+ d6 1.18/18 ] 60...a7 [ 2.97 Houdini 4 Pro x64 B: 60...c2 61.b4 c3 62.b1 c2 63.b4 0.02/22 ] 61.b6 b7 62.f2 f4 [ 5.44 Houdini 4 Pro x64 B: 62...d4 63.g3 e5 64.b3 e6 65.f4 f6 66.b1 e6 67.g5 f7 68.h5 gxh5 69.xf5 h4 70.g4 f6 71.xh4 f5 72.g3 e5 73.f4+ f5 74.b5+ e6 75.g4 f6 76.b1 g6 77.f3 f5 78.b5+ e6 79.e4 d6 80.f5 c6 81.b1 e7+ 82.f4 b7 83.f6 e2 84.b4 e1 85.f5 f1+ 86.e6 2.09/23 ] 63.b4 c3 64.xf4 xb6 65.g3 d3 66.g4 e3 [ 8.11 Houdini 4 Pro x64 B: 66...b1 67.f6 g1+ 68.f4 d4 69.d6+ c5 70.e6 d5 71.e5+ d6 72.g5 h1 73.xg6+ e7 74.g5 g1+ 75.f5 h1 76.g7+ f8 77.g4 f7 78.g5 c1 79.f4 c5+ 80.f5 c8 81.h5 g8+ 82.f4 h8 83.g5 h6 84.e5 a6 85.g6 a5+ 86.f4 1.61/23 ]

67.e4+ f2 68.a4 [ 3.60 Houdini 4 Pro x64 B: 68.f4 f6 69.a4 e3 70.g5 f8 71.xg6 g8+ 72.f6 e8 73.f5 d3 74.g6 g8+ 75.f7 g1 76.f6 h1 77.g7 g1+ 78.f8 h1 79.f7 h2 80.g7 g2+ 81.f6 f2+ 82.e6 f1 83.h5 e1+ 84.f6 f1+ 85.g7 g1+ 86.f8 h1 87.g7 g1+ 88.f8 4.59/19 ] 68...b1 [ 4.68 Houdini 4 Pro x64 B: 68...e3 69.a3+ d4 70.g5 b5+ 71.xg6 b6+ 72.g5 b5+ 73.g4 b8 74.f4 e4 75.a4+ d5 76.a6 e4 77.h5 c8 78.e6+ d5 79.f5 c1 80.h6 g1+ 81.h5 h1+ 82.g6 g1+ 83.f6 g8 84.h7 f8+ 85.g6 c8 86.g7 c7+ 87.g6 3.60/21 ] 69.a2+ [ 2.29 Houdini 4 Pro x64 B: 69.a6 g1+ 70.f4 e2 71.a2+ d3 72.h2 b1 73.h5 b4+ 74.g3 e3 75.hxg6 b7 76.h7 b1 77.e7+ d4 78.g7 b8 79.f4 d5 80.f5 d6 81.f6 b1 82.g4 g1+ 83.f5 f1+ 84.g6 g1+ 85.f7 4.68/18 ] 69...e3 70.a3+ f2 [ 4.39 Houdini 4 Pro x64 B: 70...d4 71.g5 g1+ 72.f4 d5 73.a6 g2 74.a5+ e6 75.g5 h2 76.xg6+ f7 77.g3 h1 78.c6 g7 79.g4 g1+ 80.f4 h1 81.g5 g1+ 82.f5 h1 83.g6+ h7 84.g4 h6 85.f4 h2 86.f6 h5 87.g5+ h6 88.g8 h5 89.f5 h6 90.e8 1.14/23 ] 71.g5 [ 2.49 Houdini 4 Pro x64 B: 71.a6 g1+ 72.f4 e2 73.a2+ d3 74.h2 c1 75.h5 c4+ 76.g3 c7 77.hxg6 g7 78.f4 b7 79.g5 b5+ 80.g4 b1 81.h7 g1+ 82.f5 f1 83.f4 d4 84.g7 g1 85.f6 g4 86.f5 g3 87.f7 4.39/18 ] 71...g1+ [ 1.76 Houdini 4 Pro x64 B: 71...h1 72.a4 g1+ 73.f4 g2 74.a5 f1 75.g5+ h3 76.xg6 a1 77.h5 a4+ 78.e5 a5+ 79.f6 a6+ 80.f7 a7+ 81.g8 h4 82.h6 a8+ 83.h7 h5 84.f4 a7+ 85.g7 a6 86.g5+ h4 87.g7 a7+ 88.h8 a8+ 89.g8 a4 90.f5 f4 91.h7 xf5 2.49/20 ] 72.h6 [ 0.01 Houdini 4 Pro x64 B: 72.f4 g2 73.a5 c1 74.g4 f2 75.a6 g1+ 76.f4 c1 77.a2+ g1 78.g5 c8 79.a6 f2 80.f4 c1 81.xg6 g1+ 82.h5 f1 83.f5 f3 84.f6 e4 85.h6 e5 86.g7 1.76/18 ] 72...g3 73.xg6 xh4+ 74.f5 b1 75.a5 h5 76.f4 h6 77.a7 b5+ 78.f6 b6+ 79.f7 b5 80.a6+ h5 81.f6 a5 82.g7 a7+ 83.f8 g4 ½-½

Anand,Viswanathan Nakamura,Hikaru Zurich CC Blitz 2014 (3.3) [Houdini 4]

C03 2773 2789 29.01.2014

1.e4 e6 2.d4 d5 3.d2 h6 4.gf3 f6 5.e5 fd7 6.d3 c5 7.c3 c6 8.0-0 g5 9.dxc5 xc5 10.b5 a6N [ RR 10...g7 11.e1 d7 12.f1 g4 13.d4 cxe5 14.f4 0-0 15.xd7 xd7 16.xg4 f6 17.e2 e4 18.f3 f6 19.ad1 e8 20.e3 f5 21.f4 e5 22.xe5 xe5 23.xe5 xe5 24.f3 e6 25.fxe4 Ghaem Maghami,E (2568)-Short,N (2697) Tehran 2013 1-0 (47) ] 11.xc6+ bxc6 12.b4 d7 13.e1 [ -0.61 Houdini 4 Pro x64 B: 13.b3 a5 14.xa5 c5 15.e1 c7 16.d2 g4 17.h4 h5 18.a4 e7 19.g3 a6 20.ad1 0-0 21.h6 cxb4 22.cxb4 d8 23.f4 xb4 24.xb4 xa5 25.e7 c6 26.g5+ f8 27.h6+ g8 28.xh5 -0.08/18 ] 13...a5 14.bxa5 xa5 15.b3 xc3 [ -0.50 Houdini 4 Pro x64 B: 15...a4 16.h3 c5 17.e2 g7 18.d2 0-0 19.ab1 c6 20.c4 xa2 21.a5 a6 22.a1 xa1 23.xa1 b6 24.c1 d7 25.h4 g4 26.e1 h5

-1.20/18 ] 16.fd4 c4 17.a4 c5 18.xc5 xc5 19.e3 xd4 20.xd4 xd4 21.xd4 a6 22.eb1 d7 23.b6 hb8 24.a5 b5 25.f3 xb6 26.xb6 c8 27.f2 b7 28.e3 h5 29.g3 g4 30.fxg4 hxg4 31.a2 h8 32.f2 h7 33.d4 c8 34.c5 d7 35.f4 e2 36.f2 b5 37.f4 g7 38.f6 h7 39.f4 ½-½

Caruana,Fabiano Nakamura,Hikaru Zurich CC Blitz 2014 (4.1) [Houdini 4]

B51 2782 2789 29.01.2014

1.f3 d6 2.e4 c5 3.b5+ c6 4.0-0 d7 5.e1 a6 6.f1 [ RR 6.xc6 xc6 7.d4 cxd4 8.xd4 c8 9.c3 f6 10.g5 e6 11.d5 h6 12.xf6 gxf6 13.f3 g7 14.f4 a5 15.h5 f8 16.ad1 e5 17.h3 g8 18.c3 h8 19.e3 d7 20.f3 c5 Ponomariov,R (2741)-Mista,A (2562) Czechia 2013 1-0 (33) ] 6...g4 7.h3 h5 8.c3 c8N [ RR 8...e6 9.g4 g6 10.d4 e7 11.f4 f6 12.d5 exd5 13.exd5 a7 14.h4 0-0 15.xg6 hxg6 16.g2 d7 17.d2 c8 18.a4 f5 19.gxf5 gxf5 20.h5 f7 21.f3 f8 22.g5 g6 23.h4 Kuczynski,R (2460)-Chekhov,V (2455) Warsaw 1990 ½-½ (43) ] 9.g4 g6 10.d4 h5 [ 1.40 Houdini 4 Pro x64 B: 10...cxd4 11.cxd4 e5 12.d5 b8 13.e3 d7 14.bd2 gf6 15.a4 e7 16.h4 0-0 17.xg6 hxg6 18.ac1 c5 19.xc5 xc5 20.xc5 dxc5 21.g2 g5 22.f3 d7 0.42/18 ] 11.d5 [ 0.74 Houdini 4 Pro x64 B: 11.g5 cxd4 12.cxd4 e5 13.d5 ce7 14.c3 d7 15.h4 f6 16.xg6 xg6 17.a4 d8 18.e2 xc1 19.xc1 f4 20.gxf6 xf6 21.f1 b5 22.c3 d7 23.f3 c5 1.40/19 ] 11...e5 12.h2 [ 0.02 Houdini 4 Pro x64 B: 12.xe5 dxe5 13.g5 e6 14.b3 c7 15.dxe6 e7 16.d2 fxe6 17.f3 f7 18.c4 b5 19.xe6 c4 20.xf7+ xf7 21.c2 g6 22.d1 c5 23.b4 b6 24.a4 hd8 25.axb5 axb5 26.e3 xd1+ 27.xd1 xe3 28.fxe3 1.10/19 ] 12...hxg4 13.hxg4 e6 14.f4 f6 15.g2 [ -0.45 Houdini 4 Pro x64 B: 15.d2 e7 16.dxe6 fxe6 17.xe5 dxe5 18.df3 d7 19.b3 c4 20.xb7 c5 21.b4 xe4 22.xc4 b8 23.a3 c7 24.b4 d3 25.xd3 xd3 26.e3 d8 27.d1 0.18/16 ] 15...c4 16.dxe6 [ -1.03 Houdini 4 Pro x64 B: 16.xe5 dxe5 17.dxe6 fxe6 18.d2 d6 19.e2 b5 20.b4 cxb3 21.axb3 b6 22.ec1 0-0 23.hf1 e7 24.e3 cd8 25.c4 b4 26.d1 c3 27.a2 c6 28.cxb5 axb5 29.a7 xd2 30.xd2 xe4 -0.42/18 ] 16...fxe6 [ -0.41 Houdini 4 Pro x64 B: 16...d3 17.exf7+ xf7 18.g3 g8 19.d2 b5 20.e2 d7 21.a4 xe1 22.xe1 e8 23.axb5 axb5 24.e3 f7 25.b6 d5 26.e5 b4 27.a1 bxc3 28.bxc3 xg4 29.xg4 xg4 -1.03/17 ] 17.g3 [ -1.39 Houdini 4 Pro x64 B: 17.xe5 dxe5 18.d2 d6 19.e2 b5 20.b4 cxb3 21.axb3 b6 22.ec1 0-0 23.hf1 fd8 24.b4 e7 25.b3 c6 26.a5 c7 27.g5 h5 28.e3 xe3 29.xe3 -0.41/18 ] 17...d3 18.e2 e5 19.d2 b5 20.b3 f7 21.bxc4 bxc4 22.df1 [ -1.34 Houdini 4 Pro x64 B: 22.e3 e7 23.f1 c7 24.xc4 xf2 25.xf2 xc4 26.g5 d7 27.h3 f8 28.h7 c6 29.xc4 xc4 30.xg7 xe4 31.h5+ d8 32.g4 d5 33.g6 c4 34.g2 b5 35.d1 xc3 36.f7 xf7 37.gxf7 c2 38.a8+ b8 -0.56/17 ] 22...g6

[ -0.74 Houdini 4 Pro x64 B: 22...e6 23.e3 f7 24.b1 g8 25.d2 a5 26.c2 c7 27.hf1 xg4 28.xg4 xg4 29.e3 e6 30.d5 f7 31.xd3 cxd3 32.xd3 a5 33.c4 a4 34.f3 g6 35.f2 xd5 36.cxd5 g7 37.b5 c2 38.xa4 -1.34/19 ] 23.b1 d7 24.e3 h6 25.b6 e6 26.a4 [ -1.56 Houdini 4 Pro x64 B: 26.xa6 0-0 27.d5 c5 28.xf6+ xf6 29.a4 f8 30.b1 c6 31.xc6 xc6 32.a5 a8 33.a2 g7 34.d1 b7 35.f1 g5 36.g1 d8 37.a1 a6 38.f1 f7 -0.71/16 ] 26...a8 [ -0.82 Houdini 4 Pro x64 B: 26...0-0 27.xa6 a8 28.xa8 xa8 29.h4 g5 30.g3 xa4 31.d2 a3 32.f5 f8 33.c2 a4 34.d2 a1+ 35.f1 f7 36.f3 xf5 37.exf5 d5 38.f2 xf2 39.xf2 c5+ 40.g3 -1.56/18 ] 27.a5 0-0 28.f3 [ -2.63 Houdini 4 Pro x64 B: 28.d5 xg4 29.b4 xh2 30.xh2 ac8 31.f3 c7 32.h1 a8 33.b1 fd8 34.xa6 a7 35.b4 xa5 36.c6 xc3 37.xd8 xd8 38.a2 c1 39.f2 e3 40.b8 xb8 41.xb8+ h7 42.b7+ h6 -0.65/17 ] 28...c7 29.f2 [ -3.71 Houdini 4 Pro x64 B: 29.h4 xe3+ 30.xe3 d7 31.b1 7c5 32.f1 fb8 33.xd3 xd3 34.f1 xa5 35.e7 c7 36.g5 a7 37.xb8+ xb8 38.g2 b3 39.d2 b2 40.xd3 xd2+ 41.xd2 c7 42.e3 g7 -2.46/19 ] 29...d7 30.b1 xf2 31.xf2 c5 32.g1 d3 33.hf1 [ -4.59 Houdini 4 Pro x64 B: 33.b6 ab8 34.b1 xb6 35.xb6 xb6 36.axb6 b8 37.g5 xg5 38.hg4 xb6 39.a2 f7 40.f1 f4 41.a4 b2 42.a2 e7 43.d5+ xd5 44.exd5 b3 45.f2 a5 46.xa5 e3 47.a2 d3 48.xd3 cxd3 49.c4 d2 -3.25/19 ] 33...xa5 34.c2 ab8 35.d1 c5+ 36.fe3 a5 37.a1 b3 38.h1 [ -6.72 Houdini 4 Pro x64 B: 38.f1 g7 39.a4 b5 40.a1 a4 41.h1 a3 42.g2 f4 43.a2 h8 44.d2 h2 45.g1 d5 46.exd5 xd5 47.c2 c6 48.f1 c5 49.a2 d7 50.c2 e6 51.a2 e7 52.d2 -5.50/19 ] 38...g7 39.a2 [ -8.73 Houdini 4 Pro x64 B: 39.d2 fb8 40.f1 f4 41.g2 b2 42.xb2 xb2 43.d1 xe2+ 44.xe2 xe3 45.a2 f4+ 46.h1 d5 47.b1 c8 48.g5 d4 49.h2 dxc3 50.e1 d2 51.a1 c5 52.b1 c8 53.a1 g8 54.a2 d7 55.g1 e3 56.h2 a4 57.c2 -7.01/19 ] 39...a8 [ -6.70 Houdini 4 Pro x64 B: 39...xe3 40.xe3 b2 41.xa5 xa5 42.xa5 xd1 43.e1 xc3 44.g5 b5 45.c1 d4 46.a7+ f7 47.a6 d7 48.a8 xf3 49.xf3 xf3 50.a6 g3 51.g1 e3 52.d1 c3 53.c1 b3 54.g2 c2 55.a3 d3 56.xb3 xb3 57.xc2 e3 58.c4 a7 59.f2 h3 60.g2 h5 61.c6 xg5+ 62.f2 -8.73/17 ] 40.a4 [ -10.36 Houdini 4 Pro x64 B: 40.d2 a4 41.f1 f4 42.h2 xh2 43.xh2 f4 44.g3 a3 45.g2 f8 46.h2 fb8 47.c1 d5 48.exd5 xd5 49.a1 b1 50.xb1 xb1 51.a2 b8 52.f2 d6 53.g1 c6 54.g5 d8 -6.70/19 ] 40...b2 [ -6.72 Houdini 4 Pro x64 B: 40...xe3 41.xe3 f4 42.a2 xe2 43.xe2 xc3 44.e1 a4 45.h2 a3 46.f5+ gxf5 47.gxf5 h8+ 48.h3 f7 49.g1+ f8 50.g2 e7 51.f6+ d8 52.g4 f2+ 53.g2 xh3+ 54.xh3 xf3 55.xf3 xf3 56.c2 xf6 57.g2 g6+ 58.f3 e7 59.a2 h6 60.a1 h2 -10.36/17 ] 41.xb2 xe3 42.h3 xc3 43.d1 d3 44.xe3 xe3 45.b2 [ -14.70 Houdini 4 Pro x64 B: 45.f2 xe4 46.h2 f4 47.a3 xa3 48.xa3 d5 49.f2 c6 50.g1 a4 51.f1 b8 52.e2 b3 53.a1 a3 54.d1 d3 55.c1 d5 56.f1 c3 57.a2 d4 58.e2 e3 59.xa3 xf3 60.a7+ h6 61.xf3 fxf3+ 62.g2 g5 -6.28/18 ] 45...xf3 46.b7+ [ -18.85 Houdini 4 Pro x64 B: 46.h2 h8 47.xa5 fxh3 48.a7+ xa7 49.xa7+ f6 50.xh3 xh3+ 51.g2 xg4 52.a1 c3 53.f1+ f3 54.a1 d3 55.f2 g5 56.a6 f4 57.c6 xe4 58.f1 e3 59.c7 f3 60.g1 d5 61.h2 d4 62.g3 e4 63.h4

d1 64.g5 c2 65.c6 d2 -14.58/19 ] 46...f7 47.h2 [ -#2 Houdini 4 Pro x64 B: 47.f1 xh3+ 48.g2 g3+ 49.xg3 e3+ 50.g2 xe4+ 51.g3 e3+ 52.g2 e2+ 53.f2 e4+ 54.g3 xb7 55.d1 b3+ 56.f3 a4 57.g2 xf3+ 58.xf3 a3 59.a2 c3 60.a1 a2 61.e4 c2 62.d3 c1 63.xc1 a1 64.xa1 xa1 65.g5 g1 66.e3 xg5 67.e4 f6 68.f3 d5+ 69.e3 g3+ 70.e2 a3 71.f2 g5 72.e2 g4 -17.06/21 ] 47...f2+ 0-1

Magnus,Magnus Anand,Viswanathan Zurich CC Blitz 2014 (4.2) [Sagar]

A06 2872 2773 29.01.2014

1.f3 Magnus begins with the move that he had made in the 1st game of the world championship match! d5 2.b3!? following the footsteps of Baadur Jobava, I think! c5 3.e4!? Now this is a very suprising move. I wonder how Magnus got the idea of this move. Most probably, he wanted to play the Budapest Gambit with the reversed colours! dxe4 4.g5 [ 4.e5 leads to some crazy complications after d4 5.b2! xb2 6.c3 the queen on b2 is trapped, Nc4 is threatened and also a little threat is a3 followed by Ra2! What an interesting position! a3 7.b5+!+- d7 8.c4 b4 9.xd7+ xd7 10.a3 what a queen trap!! ] 4...f6 [ 4...f5 5.g4 g6 6.c3 f6 7.g2 might lead to an interesting position. ] 5.c3 c6 Anand plays the opening safely and very nicely. [ 5...f5 will cling onto the pawn and I see nothing wrong about it. How should white continue now is the question. 6.b5+ c6 7.e2 h6 8.gxe4 xe4 9.xe4 d4 and you can see the side-effects of the move b3 in the reversed Budapest. Its creating more harm than good! 10.c3 xc2 ] 6.c4 e6 7.b2 e7 Nothing flashy. Just simple development. 8.0-0 0-0 9.cxe4 xe4 10.xe4 e5? Ladies and Gentleman, this is the most instructive mistake of the game! Lets learn from it. The move looks so natural because it closes the b2 bishop. But the big drawback is that f7 pawn is now extremely weak and the b2 bishop can be opened up now with white's powerful next move! [ 10...b6 is a move that seemed so very natural to me! It can be that Anand was afraid of Qg4 creating pressure on g7 11.g4 But this is always effectively met with d4! and after Bb7 later on, black has absolutely nothing to complain about. ] 11.f4! It didnt take Carlsen much time to make this move! It came naturally to him! exf4 And now you see how both the bishops have been opened up against the black king. 12.h5?! we cannot blame the players as they were playing with very little time but this move is not very accurate. [ 12.xf4 was a strong move and now all the white pieces are in the attack. It will be very difficult to defend in a normal game, so in blitz is as good as a lost position. ] 12...d4 [ 12...e6 was the best defense and after 13.xe6 ( 13.xc5 xc4 14.bxc4 b6-+ ) 13...fxe6= black has a fine position 14.xc5 f5-+ ] 13.xf4 once again white is better, the pressure on f7 is tremendous and the other rook is aiming to join in on f1. g6 [ 13...e6 14.xc5 wins a clean pawn! xc4 15.xd4 ] 14.e5 its all coming to an end now! pressure on f7 and the knight on e4 controls all the crtical squares like d6 and f6. b6 Anand tries to cement his d4 knight but its more like the entire city is on fire and he has come with a pail of water!! [ 14...e6 15.xe6 fxe6 16.xf8+ xf8 17.xd4 cxd4 18.xe6++- ]

15.af1 simple and effective chess. How to defend f7 is the question now. f5 [ 15...e6 16.xe6 fxe6 17.xf8+ xf8 18.f6+ let me not spill the beans here. this is similar to the game continuation. ] 16.g4 is also good. [ 16.xf5 was natural and strong. gxf5 17.xf5 c8 18.g5+- the threats galore and the game is over! ] 16...e6 [ 16...xe4 17.xf7+- ] 17.xe6 fxe6 18.xf8+ xf8 19.f6+ h8 And here Magnus could have finished the game in mate in 3. Can you spot it? 20.c3 [ 20.e8+! was the easiest g8 21.h8+! a pretty queen sac. xh8 22.xf8# A nice mate ] 20...c6 21.e8+ [ 21.e8+ And Anand threw in the towel. There were 2 ways to mate from here. g8 22.h8+ ( 22.xe6+ h8 23.xf8# ) 22...xh8 23.xf8# An excellent game by Magnus. ] 1-0

Gelfand,Boris Aronian,Levon Zurich CC Blitz 2014 (4.3) [Houdini 4]

E02 2777 2812 29.01.2014

1.d4 f6 2.f3 d5 3.c4 e6 4.g3 c5 5.g2 cxd4 6.0-0 c5 7.xd4 dxc4 8.a4+N [ RR 8.c2 0-0 9.e3 e7 10.xc5 xc5 11.d4 xd4 12.xd4 c6 13.d1 b8 14.xc6 bxc6 15.d2 a6 16.c3 fc8 17.c1 f8 18.a4 c5 19.e4 b4 20.c3 cb8 21.d1 g5 22.e5 g4 Li,C (2679)-Aronian,L (2801) Antalya 2013 0-1 (35) ] 8...bd7 9.xc4 0-0 10.c3 a6 11.b3 a7 12.d1 h6 13.d2 b8 14.ac1 b5 15.b4 b6 16.f4 a5 17.d6 e8 [ 1.97 Houdini 4 Pro x64 B: 17...g5 18.xb8 xb8 19.xd8 xd8 20.xb8 a6 21.c7 xc7 22.c5 c8 23.xb5 b6 24.a4 a6 25.c6 d4 26.xd4 xd4 27.c2 d6 28.a8 d7 29.g2 g7 30.f3 g4 31.a8 b5 32.c3 a6 33.f3 gxf3+ 34.xf3 f5 35.a4 f6 36.c6 xc6 37.xc6 0.94/18 ] 18.xb5 [ 0.88 Houdini 4 Pro x64 B: 18.c6 d8 19.xb8 xb8 20.xd8 xd8 21.xb5 d7 22.xd7 bxd7 23.a4 a8 24.g2 d5 25.d2 d8 26.d4 e5 27.c5 d7 28.c4 e5 29.c1 e7 30.h3 b4 31.c3 c4 32.xd5 exd5 1.97/18 ] 18...e5 19.d2 [ -0.39 Houdini 4 Pro x64 B: 19.e3 xe3 20.c7 xc1 21.xe8 xe8 22.a3 g5 23.xa5 c7 24.e3 a6 25.b3 e8 26.c6 b6 27.a7 e7 28.b2 ab8 29.xc8 xc8 30.h4 d6 31.xd6 xd6 32.d2 e7 33.b4 f6 34.a4 d8 0.86/18 ] 19...xf2+ [ 2.10 Houdini 4 Pro x64 B: 19...a4 20.a1 xf2+ 21.xf2 xb5 22.b4 b7 23.d3 b6 24.c2 xg2 25.xg2 e6 26.e3 bb8 27.a3 fc8 28.a7 a8 29.g1 e4 30.d6 b3 31.e3 xc1 32.xc1 xa3 -0.39/18 ] 20.xf2 xb5 21.xa5 e4 22.g1 [ 0.75 Houdini 4 Pro x64 B: 22.b4 a6 23.a4 xb4 24.xb4 e5 25.c6 g5 26.xe4 g4+ 27.e1 e3 28.h7+ xh7 29.xg4 e8 30.f5+ g8 31.f2 xe2+ 32.xe2 xe2+ 33.f1 xb2+ 34.g1 f6 35.d8+ h7 36.b8 a2 37.a5 d5 38.d8 e3 39.e8 d5 40.e5 d2 41.c5 f6 42.e7 2.23/18 ] 22...e5 [ 2.84 Houdini 4 Pro x64 B: 22...d5 23.c7 e6 24.h3 e5 25.b4 e8 26.c3 ed7 27.c6 xd1+ 28.xd1 xa2 29.g4 h7 30.h2 g8 31.c4 xc4 32.xc4 a6 33.d6 e6 34.e3 0.75/18 ] 23.b4 g6 24.a4 h5 25.c6 b7 26.e7+ xe7 27.xe7 xe7 28.xe7 b8

29.xf6 gxf6 30.b4 e5 31.c7 d5 32.b5 b3 33.d4 f5 34.b4 [ 2.91 Houdini 4 Pro x64 B: 34.e3 xa4 35.xa4 exb5 36.aa7 f8 37.f1 b1 38.a5 f4 39.e5 fxe3 40.xe4 e1 41.ce7 g7 42.xe3 xe3 43.xe3 b8 44.f2 b2+ 45.e2 b6 46.f3 f6+ 47.e4 e6+ 48.d4 d6+ 49.c5 d2 50.h3 c2+ 51.c4 g6 52.e7 4.00/21 ] 34...e6 35.b6 a5 36.e3 g7 37.f1 f6 38.a7 [ 0.12 Houdini 4 Pro x64 B: 38.c4 xc4 39.cxc4 e7 40.c7+ d6 41.xf7 c5 42.d4 c6 43.f6+ b7 44.xh6 a6 45.b4 d5 46.h4 d3 47.f2 d2+ 48.e1 a2 49.h5 a3 50.f2 a2+ 51.g1 e2 52.b5 b7 53.g6 xe3 54.h6 a3 55.xf5 e3 56.a5 xa5 57.xa5+ xa5 58.g2 f7 2.86/20 ] 38...c5 [ 3.77 Houdini 4 Pro x64 B: 38...xb6 39.xb6 xa7 40.b5 e5 41.f2 c7 42.a5 c2+ 43.g1 c1+ 44.f2 c2+ 45.g1 0.12/23 ] 39.a5 c1 40.b7 f4 41.xe4 fxe3 42.xe3 h3 [ 6.75 Houdini 4 Pro x64 B: 42...b1 43.a6 d5 44.d3 xb7 45.axb7 8xb7 46.d6+ g7 47.xb7 xb7 48.f2 b8 49.h4 b4 50.f3 b3+ 51.d3 c3 52.f4 c1 53.b6 d1 54.e4 f1+ 55.f3 f2 56.d6 f1 57.a6 f2 58.c6 f1 59.c7 f6 60.d7 g6 61.d6+ g7 62.a6 4.34/22 ] 43.f3+ g7 44.a6 d8 45.xf7+ [ 0.30 Houdini 4 Pro x64 B: 45.g4 dd1 46.xh3 xf1+ 47.g2 g1+ 48.f3 cf1+ 49.e3 e1+ 50.f4 b1 51.c3 b4+ 52.e5 d1 53.c5 b6 54.a8 db1 55.c7 1b5+ 56.d4 b4+ 57.d5 4b5+ 58.c4 b4+ 59.d3 f6 60.h8 e5 61.a7 d4+ 62.c3 6.33/16 ] 45...g6 46.b8 xb8 47.f2 b6 48.a8 g7 49.a7+ g6 50.a8 0-1

Aronian,Levon Caruana,Fabiano Zurich CC Blitz 2014 (5.1) [Houdini 4]

C41 2812 2782 29.01.2014

1.d4 f6 2.f3 d6 3.c3 bd7 4.e4 e5 5.c4 e7 6.0-0 0-0 7.e1 a6 [ RR 7...c6 8.a4 a5 9.a2 exd4 10.xd4 c5 11.f3 b6 12.g5 e6 13.xe6 xe6 14.e3 xe3 15.xe3 g4 16.d2 h4 17.g3 f6 18.g2 c5 19.c4 fe8 20.f3 e5 21.e2 ed7 22.b3 Carlsen,M (2786)-Radjabov,T (2751) Cap d'Agde 2008 1-0 (61) ] 8.a4 b6 9.g5 [ RR 9.a2 b7 10.g5 h6 11.h4 e8 12.dxe5 dxe5 13.d3 c6 14.ad1 c7 15.c4 f8 16.xd7 xd7 17.xe5 c7 18.xf7 b5 19.axb5 axb5 20.xb5 f4 21.bd6 xh4 22.f5 f4 23.xe7+ h7 Vuckovic,B (2594)-Ipatov,A (2590) Denizli 2013 0-1 ] 9...h6N [ RR 9...c6 10.a2 h6 11.h4 h7 12.g3 g5 13.xg5 hxg5 14.e2 b7 15.d2 f6 16.f3 h5 17.f2 f6 18.ad1 b5 19.g3 g6 20.dxe5 dxe5 21.d7 xd7 22.xd7 c8 23.c7 g7 24.c5 Morovic Fernandez,I (2575)-Rivas Pastor,M (2530) Spain 1993 1-0 (39) ] 10.xf6 xf6 11.d5 b7 12.xf6+ xf6 13.dxe5 xe5 14.xe5 xe5 15.c3 ae8 16.d5 xd5 17.xd5 a5 18.xe5 xe5 19.f3 fe8 20.f2 g5 21.g4 g7 22.c4 h5 23.h3 h8 24.e2 hxg4 25.hxg4 e6 26.e3 h3 27.d1 f6 28.b3 e5 29.ee1 e8 30.d5 h2 31.e2 h1 32.f5+ g6 33.d4 d1+ 34.c3 h1 35.d4 d1+ 36.c3 h1 ½-½

Anand,Viswanathan Gelfand,Boris Zurich CC Blitz 2014 (5.2) [Houdini 4]

D48 2773 2777 29.01.2014

1.d4 f6 2.c4 e6 3.f3 d5 4.c3 c6 5.e3 bd7 6.d3 dxc4 7.xc4 b5 8.d3 b7 9.0-0 a6 10.e4 c5 11.d5 c7 12.c2 0-0-0 13.dxe6 e5 14.e2 xf3+ 15.xf3 fxe6 16.e2N [ RR 16.h3 b8 17.e1 d6 18.e3 h5 19.f3 e5 20.ad1 c8 21.h4 d4 22.f2 e5 23.e2 xe3 24.xe3 e6 25.h3 c4 26.h2 xd1 27.xd1 d8 28.xd8+ xd8 29.a4 c7 30.axb5 axb5 Mamedyarov,S (2764)-Fressinet,L (2700) Beijing 2012 0-1 (64) ] [ RR 16.h3 b8 17.g5 d6 18.ad1 e5 19.de1 h6 20.c1 g5 21.h1 c4 22.f3 hg8 23.d1 xd1 24.xd1 h5 25.e2 c8 26.f1 g7 27.f4 gxf4 28.xf4 g4 29.e3 a8 30.f2 b7 Lautier,J (2660)-Gelfand,B (2695) Groningen 1997 0-1 (52) ] 16...c4 17.e5 d5 18.g5 d7 19.a4 b4 20.xd5 xd5 21.f4 [ -0.51 Houdini 4 Pro x64 B: 21.ae1 h6 22.c1 c5 23.e4 d4 24.xb7+ xb7 25.e3 d5 26.xc4 xe3 27.xc7+ xc7 28.xe3 hd8 29.f4 d3 30.xd3 xd3 31.g4 b3 32.g2 c6 33.f3 d2+ 34.f2 d3 35.a5 d5 0.33/19 ] 21...c5 [ 0.33 Houdini 4 Pro x64 B: 21...g5 22.g3 c5 23.e4 d4 24.xb7+ xb7 25.ac1 e4 26.xe4 xe4 27.h1 b7 28.f3 d4 29.f2 d5 30.e1 a5 31.xc4 d4 32.b3 xe5 33.h4 h6 34.f2 c3 35.e4 e5 36.c4 d4 37.h2 b6 38.g3 gxh4+ 39.xh4 hd8 -0.51/19 ] 22.e4 d4 23.xb7+ xb7 24.e3 d3 25.xc5 xc5 26.g4 e8 27.ac1 d4 28.xg7+ e7 29.f6 e4 [ 1.83 Houdini 4 Pro x64 B: 29...c7 30.xe6 d2 31.b3 c3 32.f6 c6 33.fe1 xf6 34.exf6 b2 35.f3 c8 36.e7+ c6 37.xh7 xb3 38.f7 d5 39.d1+ c5 40.e1 f8 41.h5+ d6 42.h6+ c5 0.35/18 ] 30.fd1 c7 [ 8.77 Houdini 4 Pro x64 B: 30...xe5 31.xc4 d5 32.e1 d6 33.f3 c7 34.ce4 a7 35.e3+ b6 36.g3 xe3 37.1xe3 a5 38.xe6 d2 39.b3 c3 40.3e5 xb3 41.xa5+ b7 42.e7+ b6 43.b5+ c6 44.xh7 bb2 45.h6+ d6 1.72/18 ] 31.f3 1-0

Nakamura,Hikaru Carlsen,Magnus Zurich CC Blitz 2014 (5.3) [Houdini 4]

C47 2789 2872 29.01.2014

1.e4 e5 2.f3 c6 3.c3 f6 4.d4 exd4 5.xd4 b4 6.xc6 bxc6 7.d3 0-0 8.0-0 d5 9.exd5 cxd5 10.g5 c6 11.a4 d6 [ RR 11...h6 12.h4 e6 13.c3 e7 14.e1 e8 15.c2 d7 16.xe7 xe7 17.f4 f6 18.d4 xd4+ 19.cxd4 g6 20.ac1 ab8 21.a3 b6 22.xb6 axb6 23.a4 d7 24.e5 a8 25.b3 f6 26.ee1 Polgar,J (2701)-Giri,A (2722) Hoogeveen 2011 ½-½ ] [ RR 11...h6 12.h4 e6 13.c3 e7 14.e1 d7 15.xe7 xe7 16.f4 f6 17.f5 xf5 18.f1 g6 19.xf5 gxf5 20.c2 g6 21.c4 f4 22.ac1 ae8 23.cxd5 cxd5 24.c3 d4 25.d5 d3 26.c3 Pridorozhni,A (2555)-Bosiocic,M (2580) Moscow 2012 ½-½ (38) ] [ RR 11...h6 12.h4 d6 13.c3 f4 14.c2 d6 15.g3 g5 16.xg5 hxg5 17.f4 g4 18.d4 a6 19.fe1 fe8 20.c5 e2 21.f2 f3 22.e5 d7 23.xd7 xd7 24.ae1 xe5 25.xe5 d8 26.f1 Nakamura,H (2651)-Gelfand,B (2733) Odessa 2007 0-1 (70) ] 12.c3 e8N

[ RR 12...h6 13.h4 g5 14.g3 xg3 15.hxg3 g7 16.c2 d6 17.d4 e8 18.fe1 g4 19.c5 h5 20.b4 g6 21.xg6 xg6 22.a4 d7 23.d3 a5 24.e3 xe3 25.xe3 axb4 26.cxb4 f6 27.c5 Zarnicki,P (2521)-Fressinet,L (2638) playchess.com INT 2004 ½-½ (46) ] 13.h4 g4 14.f3 h5 15.c2 g6 16.ae1 c7 17.g4 xd3 18.xd3 d7 [ -0.60 Houdini 4 Pro x64 B: 18...xh2+ 19.g2 h5 20.h1 xe1 21.xe1 e8 22.f2 f4 23.c5 hxg4 24.fxg4 c8 25.f5 xf5 26.gxf5 d6 27.d3 e2 28.f3 d2 29.e3 e4 30.e1 d1 31.g1 a5 32.a3 a4 33.e2 a1 34.f3 b1 35.e2 c7 36.f3 d1 -1.47/17 ] 19.c2 f8 20.xe8 xe8 21.e1 b8 22.g2 e6 23.g3 c5 24.b3 c4 25.d1 cxb3 26.axb3 d4 27.xd6 xd6 28.cxd4 f4+ 29.h1 d5 30.e4 xb3 31.e1 [ -2.16 Houdini 4 Pro x64 B: 31.c3 xc3 32.xf4 e8 33.g2 h5 34.gxh5 c2+ 35.d2 e2+ 36.xe2 xe2+ 37.g3 e1+ 38.g4 e6+ 39.h4 e1+ 40.h3 e6+ 41.g2 e2+ 42.g3 -0.06/21 ] 31...g5 32.c5 [ -5.07 Houdini 4 Pro x64 B: 32.a1 d8 33.c5 c3 34.g1 h6 35.h3 d2 36.e1 xd4 37.e4 a5 38.xa5 d3 39.c3 xc3 40.xc3 d3 41.e4 xf3 42.g3 xg3 43.xg3 xh3 44.g2 f4+ 45.f3 g7 46.f5+ g6 47.e4 -1.75/18 ] 32...a2 33.g1 h3 34.d3 xg1 35.e5 [ -4.70 Houdini 4 Pro x64 B: 35.xg1 a5 36.e5 b1+ 37.e1 h6 38.d5 a4 39.e8+ g7 40.e5+ f6 41.e7+ g6 42.e4+ f7 -2.55/9 ] 35...xf3 36.xb8+ g7 37.e1 [ -13.76 Houdini 4 Pro x64 B: 37.b2 d5 38.e2 a5 39.f2 a4 40.e4 xe4 41.xe4 a3 42.c3 xd4 43.g2 f6 44.f2 e5 45.a2 e4 46.b4 f5 47.gxf5 xf5 48.g2 g4 49.a2 h5 50.f2 d4 51.c3+ d3 52.d5 c4 53.f6 -4.98/18 ] 37...a1 38.g2 xe1+ 39.f2 d3+ 40.e3 c3 0-1

01/30/2014 – With impressive victories both Carlsen and Aronian have started showing strength and continuing their recent good form in Zuri Zurich ch 2014. Carlsen played a fantastic game against Gelfand who simply could not keep up with all the problems the Norwegian kept posing him. Aronian on pressured Anand until the Indian cracked and needlessly sacrificed a piece.

Aronian,Levon Anand,Viswanathan Zurich Chess Challenge 2014 (1) [Chirila Cristian, Ramirez Alejandro]

A13 2812 2773 30.01.2014

Judging after the results in Tata Steel, there is a constant race between the #1 and #2 in the world, with Aronian trying to close the rating gap with Carlsen. Aronian always brings interesting ideas to the table, let's see what he prepared for this tournament! A13: English Opening: 1...e6 1.c4 Houdini 4 Pro B Both Carlsen and Aronian chose to start with 1.c4, similar tournament strategy for the top seeds? e6 2.g3 d5 3.g2 f6 4.f3 dxc4 5.a4+ bd7 6.xc4 a6 [ 6...c5 7.0-0? b6 8.d4 b7 9.d1 c8 10.c3 ] 7.b3 b8 8.0-0? b5 9.a4 b7 10.axb5 axb5 11.d3 e7 The position is balanced with a small plus for white, I am sure Aronian was pleased with the outcome of the opening, avoiding any deep preparation from the former World Champion was his main goal. [ 11...d6 12.e3 c5 13.c3 0-0 14.d2 was the only other game played in this position xg2 15.xg2 g4 16.de4 xe3+ 17.fxe3 e7 18.xb5 g5 19.d4 cxd4 20.exd4 b6 21.xg5 xb5 22.xb5 xb5 23.e4 xb2 24.f3 fb8 25.fc1 f6 26.xf6+ Bu,X (2675)-Ivanchuk,V (2768) Khanty-Mansiysk 2011 ½-½ ] 12.f4 d5 13.d2 0-0 14.c1 c5 15.a5 e8 [ 15...c8 16.bd2 ( 16.e4 5f6 17.bd2=; 16.xb5 f6 ) 16...5f6 17.d1 a8 18.b4 ] 16.bd2 [ 16.xb5 f6 17.f1 f4 18.gxf4 xf3 ] 16...5f6 17.ab1 [ 17.e4 Houdini 4 d8= ] 17...d5 18.d1 a8 19.b4 a6 [ 19...b8 20.e4 b7 21.b3 c4 22.bd4 cxd3 23.c7 was an interesting way the game could have proceded, white still holds the upperhand ] 20.e4 c6 [ 20...a8 Houdini 4 21.b3 ] 21.b3 I like white's position a lot, he plays with no risk while black has a difficult time maintaing the balance. cxb4 [ 21...a8 22.bxc5 xa5 23.xa5 xa5 24.d4 e5 25.xc6 xc6 26.d4 was considered by the players in the press conference. ] 22.d2 xe4 desperation! the pressure was too much and Anand decides to look for counterplay at any cost, a good practical decision in my opinion [ 22...c5 Houdini 4 23.xb4 ( 23.xc5 xc5 24.c1 d7 ) 23...xb3 24.xb3 xb4 25.xb4 ] 23.dxe4 xe4 24.c2 c3 25.a1 f6 [ 25...b6 26.e5 ] 26.e5 fd5 27.d3 c6 "Sadly this was the only move, as the tactics worked horribly for me" - Anand 28.xd5 exd5 29.e1 [ 29.xb4!? xb4 30.xb4 ( 30.d4! was the exact way of winning the game. c4 31.xb4+- ) 30...e2+ 31.xe2 xe2 32.xc6 ] 29...c4 30.f3 d7 31.f2 d6 [ Houdini 4 : 31...d6 32.b6 a4 33.d4 ] 32.b6 [ Houdini 4 : 32.d2 cc8 33.g2 ] 32...f5 33.e3 [ 33.c5 Houdini 4 xc5 34.bxc5 h6 ] 33...h5 [ 33...g6 34.g2 a4 35.d4 c2+ 36.f2 fc8 Black's pieces are very active, this line is much better than what Anand played in the game ] 34.d4 c7

[ 34...a4 Houdini 4 35.f4 ] 35.a7 [ 35.e5 Houdini 4 Pro B e8 36.d4 c8 ] 35...xa7 36.xa7 a8 37.c5 d4 [ 37...xc5 38.bxc5 d4 39.xd4 xf3 40.e3 xe3+ 41.xe3 a1+ 42.e1 xe1+ 43.xe1 d5 44.ed3 f5 with great chances for equality ] 38.xd4 [ 38.xd4!? Houdini 4 c8 39.g2 ] 38...xc5 39.xf5 xe3+ 40.xe3 b3 Black is down a piece but his chances are certainly not gone. White only has pawns on the kingside and Black's pawn on b3 has to be dealt with. 41.d1 c8 [ Houdini 4 : 41...d5 42.f2 a1 43.h4 ] 42.xc3 very committing, but not exact. [ 42.f2! A) 42...xd1+ Houdini 4 43.xd1 c2+ 44.f1 h4 ( 44...xh2? 45.f2+- ); B) 42...d5 43.e2 c2 ( 43...g6 44.b2 c2+ 45.xc2 bxc2 46.e3+- ) 44.xc2 bxc2 45.e3+- ] 42...xc3 43.d1 White is threatening to simply bring his king slowly into e2 via f1. Black makes haste to get rid of his pawn to eliminate f3. b2 [ 43...c2 Houdini 4 44.b1 c3 45.e1 ] 44.xb2 xf3 45.d8+ h7 46.d5 Aronian now plays a very instructive endgame. The point of dismantling Black's defense is that any rook exchange will be easily winning for the White side. b3 47.d3 g6 48.d7 g7 49.f2 a3 50.e3 White will threaten both the f7 pawn and the b5 pawn, and Black cannot hold on to both of them. Therefore he give sup the b-pawn to try to make a fortress as any hopes of counterplay will be squashed easily. a2 51.h4 f6 [ 51...g2 Houdini 4 52.e5 f6 53.f4 ] 52.b7 a5 53.c5 a3+ [ 53...b4 Houdini 4 54.b3 e5+ 55.f3+- ] 54.f4 a1 55.e4+ g7 56.d6 f1+ 57.e3 f8 58.xb5 First step accomplished: with the b-pawn eliminated White tries to pressure f7, in hopes of forcing a rook trade. e7 59.e4 e1+ 60.f4 f8 61.b8+ g7 62.b7 f1+ 63.e3 f8 64.d6 f6 65.b8+ e7 66.e4 f1 [ 66...a6 Houdini 4 67.b7+ e8 68.d4+- ] 67.e2 f5 68.c8 e5 69.f3 f5+ 70.g2! Very clever. The point here is that Black's rook will be forced to stay in the f-file where it can be exchanged. e5 71.g5 e2+ [ 71...f6 Houdini 4 72.h7+- ] 72.h3! f2 [ 72...f6 might prolong resistance, but surely moving this pawn will cause Black's position to collapse sooner or later. 73.h7 Houdini 4 Pro B f7 74.c7+ e7+- ] 73.c4 Anand resigned because there is no way to prevent f4, trading the rooks and achieving a completely won endgame. f6 74.e4+ d6 75.e6+1-0

Carlsen,Magnus Gelfand,Boris Zurich Chess Challenge 2014 (1) [Chirila Christian,Houdini 4]

D78 2878 2777 30.01.2014

This is the first super tournament with Magnus Carlsen as a World Champion, after promoting chess around the world Magnus comes back to his "office" D78: Fianchetto Grünfeld: 6 0-0 c6 1.c4 g6 2.d4 f6 3.f3 g7 4.g3 Magnus' usual approach against the Grunfeld c6 5.g2 d5 6.a4!? A very rare move, as usual Carlsen is looking for a playable position which does not involve much theory. The interesting part is that this move scores the best (percentage wise) if

looking at the online database. [ 6.0-0 is the mainline 0-0 A) 7.b3 e4 ( 7...dxc4!? I like this move as it changes the pawn structure and therefore the whole character of the position. The better player will have an easier task finding the right way to deal with this position. 8.bxc4 c5 9.b2 cxd4 10.xd4 b6 11.b3 a6= Tkachiev, V- Vachier Lagrave, M 2013 0-1 ) 8.b2 f5 9.e3 d7 10.e2 a5=; B) 7.cxd5 cxd5 8.c3 c6 9.e5 e6 10.xc6 bxc6 11.a4 d7 12.f4 a5 The position is very close to equal, nevertheless white still maintains some pressure ] [ 6.b3 0-0 7.0-0 dxc4 8.xc4 f5 9.a4 a5 10.c3 a6 11.g5 d7 12.e4 g4 13.h3 b6 14.b3 c8 15.e3 xd4 16.ad1 e5 17.f3 e6 18.c2 b4 19.b1 c5 20.xe5 b3 Mamedov,R (2662)-Sasikiran,K (2663) Loo 2013 0-1 (49) ] [ RR 6.cxd5 cxd5 7.c3 e4 8.b3 xc3 9.bxc3 0-0 10.d2 e6 11.e4 c6 12.0-0 a5 13.d1 c7 14.f3 b6 15.a3 d8 16.e5 a6 17.fe1 ac8 18.b4 h6 19.d1 c6 20.a3 a5 Nakamura,H (2778)-Kramnik,V (2797) Istanbul 2012 1-0 (80) ] [ RR 6.cxd5 cxd5 7.c3 e4 8.e5 xc3 9.bxc3 0-0 10.0-0 c6 11.xc6 bxc6 12.a4 b6 13.a3 a6 14.xa6 xa6 15.fe1 fe8 16.e3 e6 17.f1 xf1 18.xf1 f8 19.xf8 xf8 20.ab1 ab8 Radjabov,T (2715)-Mchedlishvili,M (2631) Warsaw 2013 ½-½ (38) ] [ RR 6.cxd5 cxd5 7.c3 e4 8.b3 xc3 9.bxc3 0-0 10.a3 c6 11.d2 e6 12.0-0 d7 13.fe1 ac8 14.b5 fd8 15.ac1 b6 16.e3 a5 17.f1 xb5 18.xb5 f8 19.b4 c6 20.a3 a5 Wang,Y (2705)-Gelfand,B (2773) Beijing 2013 ½-½ ] 6...0-0 7.0-0 fd7 It is very impressive how much theory these guys know, even in the sidelines. Gelfand returns the favor and makes the move with the best percentage in the database 8.c2 f6N I don't really like this move as it simply looks like black is giving up a tempo without much complaint. [ 8...dxc4 9.xc4 e5 ( 9...a6 10.h3 e5 11.dxe5 xe5 12.xe5 xe5 13.c3 e6 14.a4 d4 15.xd4 xd4 16.h6 fd8 17.fc1 d7 18.b3 f5 19.ab1 f7 20.a3 c7 21.b4 a6 22.a4 d5 23.xd5 Barlov,D (2475)-Seirawan,Y (2605) Cetinje 1992 0-1 (56) ) 10.dxe5 xe5 11.xe5 xe5 12.d2 e6 The position is balanced with both colors holding certain advantages. White will sooner or later try to use his king side pawn majority and create an attack on the black king, while black will try to create counterplay in the center after he finishis his development ] [ RR 8...b6 9.c5 6d7 10.f4 e8 11.bd2 e5 12.dxe5 xe5 13.xe5 xe5 14.xe5 xe5 15.e4 dxe4 16.c3 e7 17.xe4 h3 18.f6+ xf6 19.xh3 g7 20.fd1 e8 21.xf6+ xf6 22.d6+ g7 23.f1 Sargissian,G (2673)-Volokitin,A (2678) Germany 2008 ½-½ ] [ RR 8...dxc4 9.xc4 a6 10.h3 e5 11.dxe5 xe5 12.xe5 xe5 13.c3 e6 14.a4 d4 15.xd4 xd4 16.h6 fd8 17.fc1 d7 18.b3 f5 19.ab1 f7 20.a3 c7 21.b4 a6 22.a4 d5 23.xd5 Barlov,D (2475)-Seirawan,Y (2605) Cetinje 1992 0-1 (56) ] 9.f4 f5 10.b3 b6 11.bd2 e4 12.e3 xb3 [ 12...d7 13.cxd5 xb3 14.axb3 cxd5 15.fc1 White maintains some pressure due to the control of the open and semi open files. ] 13.axb3 a6?! This move looks very normal and would probably be just that...only if the opponent wasn't Carlsen.This are the types of chances you dont want to give to the reigning World Champion, as he will always take them and punish the slightest of inaccuracies [ 13...f6 14.cxd5 ( 14.fc1? e5! 15.dxe5 fxe5 16.g5 xg5 17.xg5 e4 ) 14...cxd5 15.h4! A) 15...xd2? 16.xf5 gxf5 ( 16...e6 17.xg7 xg7 18.fd1 ) 17.xd5+ h8 18.fd1+-; B) 15...c6 16.xf5 gxf5 Black keeps a strong knight in the center, I think that is enough to assure a balanced position. White still has a slight pull but I favor this position instead of what happened in the game ] 14.cxd5 cxd5 15.g4! xg4 [ 15...xd2 16.xd2 e6 17.b1 b4 18.c3 a6 19.c7 ] 16.xe4 dxe4 17.d2 f5 18.f3 e5?!

[ 18...exf3 19.xf3 ad8 20.e5 ( 20.g5 e5 21.dxe5 fe8 22.xb7 b4 ) 20...xe5 21.xe5 d7 22.fc1 e2 23.a4 White is better due to the bishop pair ] 19.dxe5 [ 19.fxg4? exf4 20.gxf5 gxf5 21.xf4 h6-+ ] [ 19.xe5?! xe5 20.fxg4 c7= ] 19...exf3 20.xf3 ae8 21.a5 [ 21.g5 h6 ( 21...b4 22.a4 ) 22.d5+ h8 23.e6 f7 24.xg7 xg7 25.xh6 ] 21...b4 22.d4 b6 [ 22...e7 Houdini 4 23.g5 ee8 24.h3 ] 23.xa7 xe5 24.h6 f6 25.h3 [ 25.a4 Houdini 4 d3 26.d5+ h8 ] 25...h5 [ 25...xd4 Houdini 4 26.exd4 e2 27.c1 ( 27.g7+ h8 ) 27...g5 28.g7+ h8 29.e7 g8 30.xg5 xg5 31.xe2 ] 26.c2! Impressive accurate play from the World Champion g5 [ 26...xc2 27.d5+ fe6 28.c1 f3 29.xe6+ xe6 30.xc2+- ] 27.xg5 [ 27.xb4 Houdini 4 xh6 28.xf5 h8 ] 27...g6 28.xf5 [ 28.xb4?! Houdini 4 xg5 29.d5 g6= ] 28...h6 29.xh6 [ 29.xb4 Houdini 4 xg5 30.xg5+ hxg5 31.d5+ f8 ] 29...xh6 [ 29...f3!? maybe would have been a better practical chance 30.g5 xg5 31.xg5 xg2 32.xb4 ( 32.xg2? xc2 33.b7 e6 ) 32...xh3 33.d5 e6 34.e7+ f7 35.c6+ g6 36.xe5+ xg5 White still has some difficulties converting the material advantage ] 30.xb4+- xb2 [ 30...g6 Houdini 4 31.f2 h7 32.d5 ] 31.d5 h8 32.b7 [ 32.xb6 Houdini 4 g6 33.f2 e5+- ] 32...d1 33.b4 g8 [ 33...b3 Houdini 4 ] 34.e7 d8 35.e4 f6 [ 35...b3 Houdini 4 36.d5 xd5 37.xd5+- ( 37.xd5?! f8+- )] 36.xb6 g7 [ 36...e8 Houdini 4 37.bxf6 xf6 38.xf6 xe7+- ] 37.f2 Carlsen converts with ease, no surprise here. Strong and precise start for the World Champ! xe7 38.g2+ f7 39.xh6 xb4 40.gg6+1-0

Nakamura,Hikaru Caruana,Fabiano Zurich Chess Challenge 2014 (1) [Houdini 4]

D90 2789 2782 30.01.2014

D90: Grünfeld: 4 Nf3 Bg7 sidelines 1.d4 f6 2.c4 g6 3.f3 g7 4.c3 d5 5.a4+ d7 6.b3 dxc4 7.xc4 0-0 8.f4 c6 [ 8...b5 9.xb5 c5 10.e3 cxd4 11.exd4 c6 12.e2 a5 13.d3 d5 14.g3 b8 15.a4 a6 16.c3 f5 17.d1 xb2 18.xd5 xd5 19.0-0 b3 20.a3 xd4 21.xd4 xd4 22.xa6 e4 23.e1 Wang,H (2737)-Grischuk,A (2764) Beijing 2012 0-1 (34) ] [ RR 8...a6 9.e4 c5 10.e5 h5 11.e3 cxd4 12.xd4 c6 13.e2 a5 14.0-0 b4 15.h4 c2 16.g4 xe3 17.fxe3 h6 18.d1 h8 19.gxh5 g8 20.f2 ad8 21.hxg6

xf3 22.xf3 xg6 23.e4 Jakovenko,D (2742)-Topalov,V (2813) Nanjing 2009 0-1 ] 9.e4 b5 10.d3 [ RR 10.b3 c5 11.dxc5 a5 12.d2 b4 13.d5 c6 14.d3 e6 15.g5 ad8 16.xe6 fxe6 17.xb4 d4 18.c4 d7 19.c6 xc5 20.xd8 e5 21.xe6 d6 22.xd4+ xc4 23.xc4+ h8 24.e6 c8 Mamedyarov,S (2761)-Giri,A (2734) Beijing 2013 1-0 ] 10...c5N [ RR 10...a5 11.e2 c5 12.0-0 b4 13.d1 cxd4 14.xd4 d8 15.e3 a4 16.b3 xb3 17.axb3 xd3 18.xa5 c6 19.a6 d2 20.c4 d4 21.f5 e2+ 22.xe2 xe2 23.xe7+ h8 24.f3 h5 25.d6 Wang,H (2737)-Dominguez Perez,L (2726) Tashkent 2012 ½-½ (38) ] 11.dxc5 a6 12.e5 xc5 13.e3 h5 14.g5 e6 15.d1 [ 15.xb5 xb5 16.xb5 h6 ] 15...e8 16.h6 [ 16.d3!? c6 17.e4= ] 16...xh6 17.xh6 c6 18.e3 [ 18.g5 xg5 19.xg5 b8 ] 18...a6 [ 18...b4!? 19.e4 hg7 ] 19.d3= hf4 20.0-0 xd3 21.xd3 d8 22.d4 xd4 23.xd4 xd4 24.xd4 a8 25.f3 d8 26.c5 b7 27.d1 xd1+ 28.xd1 d7 29.e3 d2 30.c3 xc3 31.bxc3 f6 32.exf6 exf6 33.f2 f7 34.e2 e6 35.d3 h5 36.d4 h4 37.c5 a8 38.f4 g5 39.g3 hxg3 40.hxg3 gxf4 41.gxf4 e4 42.b6 d6 43.xa6 c5 44.a3 f3 45.a7 c6 46.b8 b6 47.f5 g4 48.d6 e6 49.e4 f5 50.d2 d5 51.c8 a5 52.c7 a4 53.b6 g2 [ 53...xa3?? 54.xb5 b2 55.c5+- ] 54.c4 bxc4 55.xc4 d5 56.c5 g8 57.d4 b3 58.d6 xa3 59.e5 b4 60.f6 c5 61.xf5 h7 62.e7 White prepares f5 b1 63.e5 h7 64.d5 c6 65.f6 b1 66.f5 xf5 67.xf5 ½-½

1/31/2014 – With a draw in the game between Carlsen and Aronian, Nakamura saw an opportunity to catch the leaders. He played enterprising and interesting chess against Anand, first sacrificing a piece for practical compensation and then playing accurate and precise moves taking advantage of every one of the Indian's mistakes.

Anand,Viswanathan Nakamura,Hikaru Zurich Chess Challenge 2014 (2) [Ramirez Alejandro,Houdini 4]

C65 2773 2789 31.01.2014

1.e4 e5 2.f3 c6 3.b5 f6 The Berlin, but Anand is in no mood for an endgame right away. 4.d3 c5 5.xc6 This idea of trading on c6 is common when Black's knight has alreayd committed to f6. This is not the best spot for it as he cannot play the move f6, reinforcing the central pawn on e5. dxc6 6.h3 [ 6.xe5? d4 is not particularly good for White. ] [ RR 6.bd2 g4 7.h3 h5 8.f1 d7 9.g3 xf3 10.xf3 g6 11.e3 e7 12.0-0-0 0-0-0 13.e2 he8 14.b1 b6 15.h4 b7 16.h5 xe3 17.xe3 c5 18.hxg6 hxg6 19.g3 a5 20.h7 h8 Anand,V (2775)-Carlsen,M (2870) Chennai 2013 ½-½ (32) ] 6...e6 7.c3 [ RR 7.e2 d7 8.e3 f6 9.xc5 xc5 10.e3 e7 11.c3 0-0-0 12.0-0-0 b8 13.d4 exd4 14.xd4 d7 15.f4 b6 16.xe6 xe6 17.c5 d6 18.b3 hd8 19.h5 h6 20.g4 e7 21.xd6 cxd6 Nakamura,H (2772)-Fressinet,L (2708) Elancourt 2013 ½-½ (31) ] 7...d6 8.0-0 0-0-0N Despite the oppositre colored castling positions usually these games still retain a strong positional feel. However that was not what happened in this game. [ RR 8...a6 9.e3 d7 10.xc5 xc5 11.d4 exd4 12.xd4 xd4 13.xd4 0-0-0 14.ad1 d6 15.d2 b5 16.xe6 ½-½ (16) Smirin,I (2659)-Almasi,Z (2672) Sibenik 2006 ] 9.a3 h5 [ Houdini 4 Pro x64 B: 9...d7 10.a4 f6 11.xc5 xc5 12.e1 d7 13.e3 b8 14.b4 g5 15.c3 e7 16.a4 h5 17.b5 c5 18.d2 g4 19.h4 g3 20.fxg3 hg8 21.f3 b6 22.af1 0.07/23 ] 10.a4 b6 11.xb6+ axb6 Black's structure on the queenside is not bad perse. It does control a lot of squares, the only downside is that pushing the a-pawn will open files for the White rook. 12.a4! f6 13.e3 f4 Black has so far ignored White's threats and tries to create his own, but it's unclear if this was such a good idea. [ Houdini 4 Pro x64 B: 13...c5 14.d2 f4 15.xf4 exf4 16.a3 b8 17.fa1 c4 18.b3 a6 19.c3 he8 20.b1 g5 21.b4 cxb4 22.xb4 a7 23.ab3 c5 24.c3 e6 25.h2 xc3 26.xc3 c6 27.bb3 h5 0.42/23 ] 14.a5! b5 15.d4?! This move is too superficial. [ 15.a6 b6 A) 16.d4 16...exf4 0.89 xh3+ 17.gxh3 xh3 18.e1 g4 19.a3 ( 19.c3 f5 is still unclear.; Houdini 4 Pro x64 B: 19.c1 exd4 20.d3 b8 21.a3 he8 22.h2 h5 23.f1 a7 24.g3 g4 25.g2 g6 26.f3 e6 27.b3 h5 28.h1 f8 29.h4 f5 30.f4 e5 31.exf5 xf5 32.xf5 gxf5 33.h3 0.67/20 ) 19...exd4 20.c1 c5 21.d3!; B) 16.xf4! exf4 17.e1 followed by e5 and White's advantage cannot be questioned. ] [ Houdini 4 Pro x64 B: 15.a6 b6 16.xf4 exf4 17.e1 b8 18.e2 he8 19.e5 f8 20.e4 d5 21.xf4 fxe5 22.xf8 xf8 23.xe5 c5 24.f3 a7 25.f2 de8 26.b3 b4 27.d7 g8 28.xe8 xe8 29.f4 c6 30.e5 b5 31.f3 xa6 32.g4 b7 33.g5 a8 1.05/23 ] 15...xh3+! Nakamura sees an opportunity and complicates the matter before his position becomes bad. The sacrifice is unpleasant to face in a real game and Black has true chances. 16.gxh3 xh3 17.dxe5 [ 17.e1 g4 18.a3 ( 18.c3 f5 and White's position is not pleasant.; Houdini 4 Pro x64 B: 18.c1 exd4 19.d3 c5 20.d2 c4 21.a3 h5 22.xd6 xd6 23.f3 d7 24.f2 h4 25.f1 e8 26.d2 c5 27.f4 a6 28.d2 g5 29.h2 e6 30.a3 c3 31.bxc3 0.28/22 ) 18...exd4 19.c1 c5 20.d2 b4 Black's position looks superior, for sure. ] 17...e6 18.d2 xf1 19.xf1 xe5 Black has two pawns and a rook for the two pieces, normally chances would be about even, but with White's slightly awkward knight, his exposed king and his weak pawns I would prefer Black, despite what the engines say. 20.c3 b8 21.a6 b6 22.g2 d6 23.f1?! This move looks safer, but actually it just makes the knight passive.

[ 23.xg7 dd8 is not a human decision to make, even though White might hold and the pawn will come in handy. ] [ 23.b3! Was the best with the idea of activating pieces. Despite the fact that the e-pawn drops it is ok because White's pieces can control the queenside structure. e8 24.d4 xe4 25.xe4 xe4 26.g2 and Black has a hard timemaking progress. ] [ Houdini 4 Pro x64 B: 23.d4 e7 24.f1 e8 25.g3 g6 26.b4 h5 27.f3 h4 28.f1 dd8 29.e2 a8 30.h1 f5 31.e5 g5 32.d2 e6 33.g1 h6 34.b3 h3 35.h2 f4+ 36.g3 h8 0.02/21 ] 23...f5! Nakamura correctly opens up the position, straining the knights capacity to play on both flanks. 24.exf5 xf5 25.g3 d7 [ 25...c2 was quite interesting. Can White really punish the pawn grab? ] 26.e4 a7 27.g2 h5 Natural - after the push h4 White's knight is kicked from g3 and his king is left vulnerable. 28.f5 [ 28.h1 seemed more natural to me, but Black must be better anyways f7!? ] 28...e8 Only in Anand's wildest dreams would Nakamura allow a queen trade when his opponent's king is as exposed as the one on g2. 29.e4 [ Houdini 4 Pro x64 B: 29.h1 g6 30.c2 e6 31.e1 xa6 32.e4 xe4+ 33.xe4 d7 34.g5 d5 35.f4 b7 36.g5 f8 37.e6 f6 38.e4 f7 39.e2 c5 40.g5 fd7 41.f4 f5 42.g3 c6 43.e1 d3+ 44.h4 b4 45.c4 b3 46.e2 -0.71/23 ] 29...f7 Now Black's initiative is hard to stop. White has no useful moves. 30.h1 h4 31.e2? Too passive and the final mistake. [ 31.f5 e6 32.d3 and sure, White is still worse, but there is no immediate winning coup de grace. ] [ Houdini 4 Pro x64 B: 31.f5 e6 32.d3 c5 33.g1 g6 34.h6 e8 35.d5 c6 36.g5 xa6 37.g4 d7 38.xh4 d1+ 39.g2 b3 40.g4 xh4 41.xh4 b4 42.cxb4 xb4 43.g5 b3 44.f6 e7 45.c1 c2 46.f4 e6 47.d7 e4+ 48.xe4 xe4 49.f3 e1 50.f4 -0.76/24 ] 31...e8 32.g4 g6 White cannot defend the diagonal and his king dies quickly. 33.h3 [ Houdini 4 Pro x64 B: 33.f4 d5+ 34.f3 d7 35.g1 c5 36.e1 h3 37.b4 h2 38.h3 xe3 39.xe3 xh3 40.f2 c4 41.a1 f6 42.f1 xa6 43.e2 e6 44.a1+ b7 45.xh2 xf3+ 46.g2 e3 47.xf3+ xf3 48.c1 c6 49.h2 d3 50.g2 g5 51.f2 g4 52.g2 d5 53.c2 c5 54.bxc5 bxc5 55.c1 g3 -3.42/19 ] 33...d5+ 34.h2 xe3 35.fxe3 d2 Black has two extra pawns and the safer king. All White can do is resign. 36.f1 f6 0-1

Carlsen,Magnus Aronian,Levon Zurich Chess Challenge 2014 (2) [Chirila Christian,Houdini 4]

A29 2872 2812 31.01.2014

The most anticipated game of the round, it is always a pleasure to see the two top guns shooting at each other novelties and middlegame incredible ideas, let's see what they had in store for us this time! 1.c4 f6 2.c3 e5 3.f3 c6 The English four knights system, a very explored opening with many interesting ideas still to be discovered. 4.g3 d5 5.cxd5 xd5 6.g2 b6 7.0-0 e7 8.a3 0-0 9.d3 e8 [ 9...e6 Is the most played move in the position but due to the flexible character of the opening many set-ups are possible 10.b4 a5 11.b5 d4 12.d2 c6 13.bxc6 xc6 14.b1 ] 10.b4 f8 11.b1 [ 11.b2 a5 12.b5 d4 13.d2 c6 14.bxc6 xc6 15.b1 ] [ RR 11.b2 d4 12.d2 c6 13.e3 f5 14.c2 d6 15.ad1 g4 16.f3 xf3 17.xf3 a5 18.b3 d7 19.bxa5 bc8 20.d4 e4 21.e5 e6 22.xe6 xe6 23.d7 c4

24.c1 xa5 25.d5 cxd5 Svidler,P (2722)-Carlsen,M (2802) Moscow 2010 0-1 ] [ RR 11.b2 d4 12.xd4 exd4 13.b5 a5 14.bxa5 xa5 15.xd4 a4 16.c2 xb2 17.xb2 g6 18.f3 e7 19.c3 c5 20.xc5 xc5 21.d4 xa3 22.e5 b4 23.ab1 f8 24.xb7 xb7 25.xb7 c5 Maletin,P (2598)-Savchenko,B (2602) Dombai 2013 1-0 (71) ] 11...a5 12.b5 d4 13.e3N This move has been played only once before, again Carlsen shows that he is not afraid to get his opponents out of theory and try to outplay them no matter what the assesment of the position is [ 13.d2 a4 14.b2 a7! this move is very important, activating the c8 bishop is more important than the curent passivity of the a7 rook 15.e3 b3 ] [ RR 13.d2 a4 14.e3 e6 15.f3 c5 16.d4 exd4 17.xd4 g6 18.c2 g7 19.ce2 e6 20.b2 xd4 21.xd4 e7 22.fe1 b8 23.bc1 e5 24.c3 f6 25.f4 d6 26.e4 f7 27.e5 fxe5 Sher,M (2535)-Baburin,A (2530) Farum 1993 1-0 (40) ] [ RR 13.d2 a4 14.e3 e6 15.f3 c5 16.d4 exd4 17.xd4 g6 18.c2 e7 19.ce2 e6 20.xe6 xe6 21.b2 b3 22.fc1 ad8 23.d4 xc2 24.xc2 d5 25.d1 f6 26.c3 ce4 27.b2 c5 Georgiev,K (2580)-Gelfand,B (2680) Manila 1990 ½-½ (91) ] [ RR 13.b2 g4 14.d2 c8 15.e1 a4 16.c1 d7 17.f3 c5 18.bxc6 xc6 19.xd4 exd4 20.xc6 bxc6 21.e4 c5 22.c2 d8 23.c1 c4 24.dxc4 f5 25.g5 c7 26.c5 c8 27.f4 c6 Portisch,L (2605)-Kortschnoj,V (2625) Wijk aan Zee 1990 1-0 (39) ] 13...xf3+ 14.xf3 a4 15.e2 a7 16.b2 e6 17.fc1 d7 [ 17...f5!? Restricting white's pieces, especially his c3 knight 18.g2 d6 19.d1 a2 20.a1 b3 I like black's position, it seems to me that only white will play for equality here ] 18.e4 a2 19.a1 d5 20.g4 d8 21.c3 [ 21.c5 a5 22.d4 e4 23.c3 a8 24.b4= the position remains balanced ] 21...d7 22.f3 b6 23.b4 xb4 24.axb4 e7 [ 24...a3!? 25.c3 ( 25.c3 xf3 26.xf3 f6 27.d1 d6 ) 25...a2 26.cc1 a8 27.g4 d8 28.c3 f6 29.xd5 xd5 30.f3 b3 With accurate play white can save himself but I this pawn push would have probably been Aronian's best practical chance ] 25.c3 xf3 26.xf3 f6 27.xa4 xa4 28.xa4 xb4 29.c3 b2 30.d1 d8 31.g2 h6 32.h3 The position favors black due to his more active pieces, but the advantage is minimal and Aronian decides to enter a tactical line that simplifies the position, a gentleman's draw offer. xd3 [ 32...d7 33.c2 b3 34.c1 b4 35.c2= ] 33.xd3 xc1 34.d8+ h7 35.xc7 e4 36.xe5 xc3 37.f5+ g8 38.c8+ h7 39.f5+ h8 40.c8+ h7 An easy draw for Aronian, none of the combatants were willing to take any additional risks and therefore the game did not involve any fireworks. A strong start for Aronian who shows that he is capable of keeping the pace with the World Champion! ½-½

Gelfand,Boris Caruana,Fabiano Zurich Chess Challenge 2014 (2) [Houdini 4]

A88 2777 2782 31.01.2014

1.d4 d6 2.f3 g6 3.c4 f5 4.c3 f6 5.g3 g7 6.g2 0-0 7.0-0 c6 8.b4 [ RR 8.b3 c7 9.a3 e8 10.c1 a5 11.d1 a6 12.e1 b4 13.c2 xc2 14.xc2 e5 15.dxe5 dxe5 16.d6 f7 17.a4 d7 18.e4 f4 19.c5 f8 20.f3 g7 21.c3 fxg3 22.hxg3 f6 Aronian,L (2825)-Nakamura,H (2775) Moscow 2012 ½-½ (71) ] [ RR 8.b3 h8 9.d1 a6 10.a3 c7 11.d5 c5 12.b4 cxb4 13.xb4 a6 14.b1 d7 15.b5 c8 16.d2 b6 17.e3 c5 18.a4 a5 19.a3 a6 20.b4 d8 21.d4 xa4 22.e6 xe6 Aronian,L (2805)-Nakamura,H (2759) Wijk aan Zee 2012 1-0 (59) ] [ RR 8.d5 e5 9.dxe6 xe6 10.b3 e8 11.b2 a6 12.g5 e7 13.xe6 xe6 14.c2 c5 15.ad1 ad8 16.e3 ce4 17.xe4 fxe4 18.d2 d5 19.cxd5 cxd5 20.c5 b6

21.b5 h5 22.a3 f8 Gelfand,B (2739)-Nakamura,H (2759) Wijk aan Zee 2012 0-1 (37) ] 8...e5N [ RR 8...h8 9.b1 e6 10.d5 cxd5 11.g5 g8 12.xd5 d7 13.b2 c6 14.c1 ac8 15.d1 e5 16.c5 xd5 17.xd5 xd5 18.xd5 xb4 19.xd6 e7 20.e6 f6 21.xe5 xe6 22.xg7+ xg7 23.xe6 Juettler,H-Liebert,H Leipzig 1956 1-0 ] [ RR 8...c5 9.bxc5 dxc5 10.e3 c6 11.b2 b8 12.e2 e6 13.ad1 a5 14.e5 cxd4 15.exd4 xe5 16.xe5 xe5 17.dxe5 g4 18.a3 xe5 19.xf8 xf8 20.b5 a6 21.d6 e7 22.c5 d7 23.xc8+ Romanov,E (2547)-Bologan,V (2665) Plovdiv 2008 1-0 (69) ] 9.dxe5 dxe5 10.e4 [ Houdini 4: 10.b3 e7 11.d1 e4 12.g5 h6 13.h3 e8 14.a3 g5 15.e3 g4 16.d4 xd4 17.xd4 0.61/11 ] 10...e6 [ Houdini 4: 10...xd1 11.xd1 e6 12.exf5 xf5 13.e3 bd7 14.b5 g4 15.bxc6 bxc6 16.h4 xe3 17.fxe3 g4 18.xc6 ad8 19.f1 h6 20.g2 c5 21.xf8+ xf8 22.e4 xe4 23.xe4 b8 24.f1 g7 25.d5 f5 26.e4 0.19/20 ] 11.exf5 gxf5 12.xe5 [ Houdini 4: 12.b3 e7 13.b5 fd7 14.a3 c5 15.bxc6 bxc6 16.ad1 e4 17.g5 bd7 18.a4 xg5 19.xc5 xc5 20.xc5 fc8 21.d6 c5 22.f3 d4+ 23.h1 e3 24.f4 h5 25.fe1 f7 26.f1 e8 27.g2 a5 28.xe3 ab8 0.43/19 ] 12...xd1 13.xd1 fd7 14.xd7 xd7 15.b2 b6 16.ac1 xc4 17.a1 ad8 18.xd8 xd8 19.h3 d3 20.d1 c4 21.xg7 xg7 22.f1 xf1 23.xf1 d4 24.e2 f6 25.f3 a3 26.c3 b5 27.b3 c4 28.d3 c1 29.c3 f1 30.e3 e1+ 31.d3 f1 32.e3 e1+ 33.d3 a6 34.a4 d6 35.b1 xb1 36.xb1 b5 37.axb5 axb5 38.d4 c4 [ Houdini 4: 38...e6 39.d2 e8 40.b3 d6 41.c5 f6 42.d3 d5 43.g4 fxg4 44.fxg4 c7 45.c5 d5 46.e4+ c7 47.g5 xb4 48.xh7 d6 49.g5 c2+ 50.d3 e1+ 51.e4 b4 52.g6 b3 53.g7 b2 0.14/19 ] 39.c5 e5 40.d2 h5 41.f4 d3+ 42.xc6 xb4+ 43.xb5 d3 44.f3 f2 45.c6 g4 46.d6 h4 47.gxh4 e3 48.e5 g2 49.d7+ [ Houdini 4: 49.d3 xh4 50.e1 g6 51.g2 e7 52.e3 c8+ 53.c5 e6 54.h4 d6 55.h5 f7 56.c4 f6 57.d4 h6 58.d5+ e6 59.c5 g4 1.18/14 ] 49...g7 [ Houdini 4: 49...f7 50.e5 xh4 51.d6 g2 52.e5+ f6 53.d3 e3 54.h3 g6 55.e5+ h5 56.f3 d1 57.g5 e3 58.e5 h4 59.e6 g3 60.e5 0.69/14 ] 50.e5 [ Houdini 4: 50.e6 xf4+ 51.xf5 h3 52.g4 f2+ 53.g5 h3+ 54.f5 h6 55.f6 f2 56.h5 h3 57.g4 f2+ 58.f4 d3+ 59.f5 c5 60.h3 d3 61.h4 c5 1.73/13 ] 50...xh4 51.h3 f7 52.b8 [ Houdini 4: 52.c5 g6 53.e6 f3 54.d3 g1 55.f2 f3 56.e7 g1 57.d6 e2 58.e5 g1 59.d5 f6 60.d6 f3 61.d3 g1 62.h4 g6 63.e6 h5 64.c5 xh4 65.xf5 f3 66.e4 d4+ 67.e5 f3+ 68.e6 d4+ 69.e5 f3+ 0.53/13 ] 52...g6 53.c6 f3+ 54.e6 g1 55.e5+ h5 56.xf5 ½-½

2/1/2014 – In a performance that would bewilder Harry Houdini, Magnus Carlsen has not only escaped from the grasp of defeat at the hands of Hikaru Nakamura, but he was able to turn the game around and somehow win. The American played better than the Norwegian, but an inexplicable and costly blunder turned the tides and it was he who was faced with a loss Report of a miracle.

Aronian,Levon Gelfand,Boris Zurich Chess Challenge 2014 (3) [Houdini 4]

D78 2812 2777 01.02.2014

1.d4 f6 2.c4 g6 3.g3 [ Houdini 4: 3.c3 d6 4.e4 g7 5.f3 0-0 6.e2 c5 7.d5 bd7 8.0-0 g4 9.h3 ge5 10.e3 0.50/13 ] 3...c6 4.g2 d5 5.cxd5 cxd5 6.f3 g7 7.e5 e4 [ Houdini 4: 7...c6 8.0-0 b6 9.d3 f5 10.c3 c8 11.e3 0-0 12.a4 a5 13.ac5 b6 14.d2 b5 -0.22/13 ] 8.d2 xd2 9.xd2 0-0 10.0-0 d7 11.c3 f6N [ RR 11...xe5 12.dxe5 e6 13.d2 d7 14.fd1 fd8 15.e3 a4 16.d4 a6 17.a3 d7 18.ad1 ad8 19.4d2 b6 20.d3 h5 21.d4 c7 22.c3 xc3 23.xc3 d7 24.h4 ½-½ (24) Esen,B (2588)-Safarli,E (2620) Baku 2012 ] 12.b3 e4 13.xe4 dxe4 14.fd1 b6 15.xb6 axb6 16.c4 e6 17.d5 g4 18.xg7 xg7 19.f1 b5 20.e3 d7 21.a3 fc8 22.ac1 f6 23.xc8 xc8 24.d6 e6 25.g4+ f5 26.e3+ f6 27.g4+ f5 ½-½

Caruana,Fabiano Anand,Viswanathan Zurich Chess Challenge 2014 (3) [Houdini 4]

D11 2782 2773 01.02.2014

1.f3 d5 2.c4 c6 3.d4 f6 4.e3 g4 5.c3 e6 6.h3 h5 7.g4 g6 8.cxd5N [ RR 8.e5 bd7 9.xg6 hxg6 10.d2 b4 11.c1 e7 12.a3 xc3 13.xc3 e4 14.g2 xc3 15.xc3 b6 16.cxd5 exd5 17.c2 0-0 18.h4 c4 19.h3 a5 20.f1 b5 21.d3 b4 22.axb4 axb4 Bareev,E (2636)-Najer,E (2669) Philadelphia 2009 ½-½ (45) ] [ RR 8.e5 bd7 9.h4 dxc4 10.xg6 hxg6 11.g5 d5 12.xc4 b4 13.d2 e7 14.b3 7b6 15.e2 0-0-0 16.a3 a5 17.0-0-0 e5 18.dxe5 xe5 19.xd5 xd2+ 20.xd2 xd5 21.xd5 cxd5 22.b4 b8 Caruana,F (2796)-Vachier Lagrave,M (2719) Tromso 2013 ½-½ (55) ] [ RR 8.e5 bd7 9.xg6 hxg6 10.a3 d6 11.d2 a6 12.d3 b5 13.c5 c7 14.f4 g8 15.f3 g5 16.0-0-0 gxf4 17.exf4 h4 18.e2 a5 19.e1 d8 20.h4 a4 21.h5 e7 22.c3 b8 Ponomariov,R (2756)-Morozevich,A (2739) Riga 2013 1-0 (47) ] [ RR 8.e5 dxc4 9.xc4 bd7 10.xg6 hxg6 11.d2 d5 12.b3 c7 13.c1 xc3 14.bxc3 e7 15.f1 d8 16.c2 a6 17.a4 f6 18.g2 c5 19.e2 d7 20.f3 0-0 21.b1 b8 22.cb2 d5 Van Wely,L (2679)-Caruana,F (2781) Wijk aan Zee 2013 1-0 (50) ] [ RR 8.e5 bd7 9.xg6 hxg6 10.d3 d6 11.d2 dxc4 12.xc4 e7 13.f3 c7 14.0-0-0 0-0-0 15.b1 b8 16.b3 b6 17.g5 fd7 18.h4 h5 19.e2 a6 20.f4 hh8 21.d3 df8 22.c1 d6 Sokolin,L (2520)-Chernin,A (2635) New York 1997 1-0 (40) ] [ RR 8.e5 fd7 9.xg6 hxg6 10.d3 dxc4 11.xc4 b6 12.b3 c5 13.d5 exd5 14.xd5 d6 15.c2 8d7 16.e4+ f8 17.xb6 xb6 18.d2 e8 19.d5 e7 20.g5 c7 21.0-0-0 b6 22.g2 h4 Macieja,B (2629)-Movsesian,S (2663) Bermuda 2003 ½-½ (52) ] 8...xd5 9.e5 b4 10.d2 d7 11.xg6 hxg6 12.a3 a5 13.g2 g5 14.c2 c8 15.d1 c7 16.e2 f8 17.b3 b8 18.e4 f4 19.xf4 [ Houdini 4: 19.xf4 xf4 20.d5 e5 21.xf4 gxf4 22.c3 g6 23.dxc6 c7 24.0-0 bxc6 25.d2 h4 26.fd1 0-0 27.d7 0.52/13 ] 19...xf4 20.h4 e5 21.d5 g6 22.dxc6 a5+ 23.c3 0-0 24.cxb7 c7 25.d5 xb7 26.xb7 xb7 27.b4 gxh4 28.f1 g5 29.h3 d8 30.c4 bb8 31.hd3 dc8 32.b3

b7 33.a4 a6 34.b1 f8 35.c3 g6 36.d5 f8 37.c3 g6 38.d5 f8 39.c3 g6 40.d5 f8 ½-½

Nakamura,Hikaru Carlsen,Magnus Zurich Chess Challenge 2014 (3) [Chirila Christian,Houdini 4]

E20 2789 2872 01.02.2014

E20: Nimzo-Indian: 4 g3 and 4 f3 Chirila Cristian: 'What a crazy game! Nakamura has recently grasped the attention of chess fans after his famous tweet in which he proclaims himself as the saviour of the chess world from the hands of Sauron Carlsen, and throughout this game his predictions seemed to become reality. But Sauron was quite a malificent guy...' 1.d4 f6 2.c4 e6 3.c3 b4 4.f3 Chirila Cristian: 'As expected Nakamura is going for the kill and looks for complex structures from the start' [ 4.c2 and ] [ 4.e3 are the more quiet approaches to this opening ] 4...d5 5.a3 e7 [ 5...xc3+ 6.bxc3 c5 7.cxd5 ( 7.e3 0-0 8.cxd5 xd5 9.d2 b6 ) 7...xd5 8.dxc5 a5 9.e4 (Chirila Cristian) Is the other main line, with very complicated middle game positions arising ] 6.e4 dxe4 7.fxe4 e5 8.d5 c5 9.g5 [ 9.f3 g4 10.d3 ( 10.h3 xf3 11.xf3 c6 12.g4 0-0 13.g5 bd7 14.0-0-0 d4 15.e2 b6 16.xd4 exd4 17.f4 fe8 18.d3 cxd5 19.exd5 e5 20.xf6 gxf6 21.f5 xd3+ 22.xd3 ac8 23.b1 a6 24.c1 b6 Jones,G (2556)-Smerdon,D (2530) Parramatta 2010 1-0 (31) ) 10...bd7 11.h3 xf3 12.xf3 c6 13.d2 0-0 14.c1 d4 15.b4 a5 16.e2 b2 17.b1 xa3 18.bxa5 c5 19.xb7 cxd5 20.cxd5 xa5 21.g4 a3 22.c1 a1 23.f1 b6 Mamedyarov,S (2719)-Anand,V (2788) Moscow 2009 0-1 ] 9...0-0N [ 9...d4 10.d3 h6 11.h4 c6 12.c2 bd7 13.f3 e7 14.f1 ( 14.xd4 exd4 15.e2 c5 16.0-0 g5 17.f2 e5 18.b4 b6 19.g3 h5 20.ac1 fg4 21.h3 xf2 22.xf2 cxb4 23.axb4 xb4 24.b1 c3 25.xc3 dxc3 26.f1 e7 27.c1 h4 28.f5+ xf5 Huerta,R (2440)-Vaisser,A (2490) Bayamo 1985 0-1 (41) ) 14...c5 15.0-0-0 ½-½ (15) Armas,J (2455)-Morovic Fernandez,I (2525) Santa Catalina 1987 ] [ 9...a5 10.f3 e7 11.d3 bd7 12.e2 h6 13.d2 c6 14.a4 d4 15.xd4 exd4 16.f4 e5 17.b6 g4 18.c2 xd3+ 19.xd3 a6 20.0-0 xb6 21.d6 xd6 22.e5 e7 23.ae1 d7 24.e6 Tal,M-Keres,P Bled/Zagreb/Belgrade 1959 0-1 (40) ] [ 9...h6 Chirila Cristian 10.h4 d4 11.f3 c5 ] 10.f3 g4 11.h3 xf3 12.xf3 Chirila Cristian: 'Nakamura got exactly what he wanted, it is a well known fact that Carlsen prefers positions in which long maneouvres are predominant, here white will castle long and soon we will witness a pawn race in the quest of opening up the opponent's king' bd7 13.0-0-0 d4 14.e2 c5 15.g4 a5 [ 15...h6 16.h4 b6 17.d2 a5 18.b1 a4 19.g5 ] [ 15...a6 16.b1 b5 17.cxb5 axb5 18.xd4 cxd4 19.xb5 c5 would have been an interesting try to open up the position and look for counterplay ] 16.b1 Chirila Cristian: 'I prefer white's position and I will even go further and assign him an almost winning advantage, black will not have an easy task reaching white's king while his defense on the king side will be extremely difficult' a6 17.g3 g6?! [ Houdini 4: 17...a4 18.f5 a5 ( 18...g6 Chirila Cristian 19.h6+ g7 20.h4 b6 21.h2 b3 22.d3 ) 19.c1 e8 20.g5 d6 21.e2 xf5 22.xf5 d6 23.h4 b6 24.h3 a6 25.d3 d7 26.c2 b6 27.g4 d8 28.hf1 b3 29.d3 b6 30.xb3 axb3 0.45/23 ]

18.h4 a4 19.h2 [ 19.h6!? (Chirila Cristian) This was the easier way of gaining material and keep the pawn wave flowing b6 ( 19...e8 20.g5 h5 21.xh5 gxh5 22.xh5+- ) 20.h2 b3 21.d3 xd3 22.xd3+- ] 19...a5? [ Houdini 4: 19...e7 20.h5 b6 21.d3 a8 22.hxg6 fxg6 23.d1 g1 24.h6 d4 25.h2 g1 0.66/23 ] 20.d2 [ Houdini 4: 20.h5! b6 21.c1 b3 22.d3 xd3 23.xd3 c7 24.c2 a8 25.e2 e8 26.hxg6 fxg6 27.h3 df6 28.g5 h5 29.e6+ f7 30.xd4 exd4 31.b6 e7 32.h3 c7 33.xc7 xc7 34.e5 f7 35.d6 e8 36.d7 c7 37.xa4 e7 1.74/17 ] 20...c7 [ Houdini 4: 20...d8 21.h6 e8 22.xf8 f6 23.e2 xf8 24.g5 b6 25.g4 d6 26.h5 g8 27.a2 g1 28.c2 e3 29.hxg6 hxg6 30.e2 xg5 31.c3 f4 32.xa4 a6 33.c3 f6 34.f3 1.16/21 ] 21.g5 [ Houdini 4: 21.h5! b6 A) 22.h6 Chirila Cristian b3 23.d3 xd3 24.xd3 a8 25.e2 a6 26.xd4 cxd4 ( 26...exd4 27.f4 e5 28.g3 fd7 29.hxg6 xg6 30.c2 ) 27.c5+-; B) 22.c1 b3 23.d3 xd3 24.xd3 d6 25.g5 e8 26.f1 e7 27.e3 xe3 28.xe3 d6 29.h3 d8 30.a2 f8 31.f1 c8 32.h1 f8 33.f3 b6 34.d2 f5 35.hxg6 fxe4 36.h5 h6 37.e2 1.77/21 ] 21...e8 22.h5 b6 23.c1 b3 24.g4 b6 25.e2 d6 [ Houdini 4: 25...f5!? 26.exf5 xg3 27.xg3 gxf5 28.h3 d7 29.g6 f4 30.g4 g7 31.e6+ h8 32.f1 h6 33.g2 f6 34.d3 d8 35.d2 xc4 36.xd4 e3 37.xe3 cxd4 38.g1 xd5 39.d1 f6 40.xa4 f3 41.f2 xh5 2.51/19 ] 26.dh1 [ Houdini 4: 26.hxg6! A) 26...fxg6 Chirila Cristian 27.dh1 xb2 ( 27...f7 28.xh7 xh7 29.xh7 xh7 30.h3+ g8 31.e6++- ) 28.e6+ h8 29.xh7+ xh7 30.xd6+-; B) 26...d7 27.gxh7+ h8 28.xd7 xd7 29.h6 xc4 30.xc4 xg3 31.b5 b8 32.xa4 f3 33.b5 f6 34.g6 f5 35.exf5 3xf5 36.e1 d8 37.d3 ff8 38.e4 d7 39.hh1 f2 40.ef1 f6 4.79/16 ] 26...xb2? Chirila Cristian: 'I would assign this move an exclamation mark because of the practical aspect of it, white now will have to deal with the pressure of being attacked, while previously he only had to care about his attack succeeding' [ Houdini 4: 26...d7 27.h4 xg3 ( 27...xb2 Chirila Cristian 28.hxg6 xc1+ 29.xc1 fxg6 30.g4+- ) 28.xg3 xe4 29.h4 d6 30.hxg6 fxg6 31.g4 f5 32.xh7+ xh7 33.xh7 e4 34.xb7 xc4 35.f4 e3 36.c1 d2+ 37.c2 c4 38.e2 fd6 39.xd6 xd6 40.b6 f2 41.e1 e5 42.a6 f4 43.a8+ g7 44.a7+ f7 45.d3 xb2 46.f1 f2 47.xe3 d4+ 48.d3 2.76/18 ] 27.xb2 bxc4 [ Houdini 4: 27...d7 28.hxg6 xg4 29.xg4 bxc4 30.f5 xb2+ 31.xb2 fxg6 32.xd6 xd6 33.e6+ h8 34.c1 xe4 35.xb7 d6 36.b6 e4 37.d6 d8 38.b2 xg5 39.d5 h5 40.xc5 g7 41.b7+ f6 42.d7 e7 43.c6 xd7 44.xd7+ xd7 45.xg6 h7 46.h6 g5 47.c3 6.33/19 ] 28.xc4 xc4 29.hxg6 b6 [ 29...xb2 Chirila Cristian 30.g7 d3+ 31.c2 d8 32.f5+- ] 30.g7 [ 30.gxf7+ Chirila Cristian xf7 31.h5! This is the only move that wins immediately, it is not easy to be so cold blooded when your king is so exposed xb2+ 32.a1 xh2 33.f6++- ] 30...d8 31.h4 xb2+ 32.a1 xh2 33.xh2 g6 34.f5 e8 35.g4 b6 36.h3 g6 Chirila Cristian: 'So far Nakamura managed to keep a cool head and preserve his advantage, but in time trouble and under a lot of pressure, he blunders incredibly' 37.d6?? [ Houdini 4: 37.f1! b5 38.xh7!! xh7 ( 38...xh7 Chirila Cristian 39.h3+ g8

40.h8# ) 39.h6+ xh6 40.gxh6 b8 41.f6 b4 42.h7+ xh7 43.xf7 g8 44.d6 xd6 45.h5+ xg7 46.xe5+ f7 47.d5+ g7 48.xd6 f8 49.axb4 cxb4 50.xb4 e8 51.xa4 e7 52.b5+- ] 37...xd6 38.xd6 d8 39.c4 [ 39.c8 Chirila Cristian xg7 40.e7 d1+ 41.a2 e6+ 42.xe6 fxe6 43.h6 White keeps a small advantage but he will need a lot of technique to press black ] 39...xe4 40.h5? [ Houdini 4: 40.e3! d3 41.f5 d1+ 42.b2 d2+ 43.xd2 xd2+ Chirila Cristian: '=' 44.b1 d1+ 45.b2 d2+ 46.b1 -0.06/25 ] 40...d3 Chirila Cristian: '-+!' Chirila Cristian: 'White's idea is to play Qe2 and create some sort of a blockade surrounding his king, Carlsen wisely predicts his opponent's idea and takes control of the game' 41.h4 f5 42.e2 b5 43.d2 xg5 Chirila Cristian: 'Magnus chooses the best practical to convert his advantage, exchaning the rooks and entering an endgame with a crushing advantage' [ 43...xa3+ Chirila Cristian 44.b2 g3 45.e4 white may get some counterplay against black's king, the game continuation is much safer ] 44.xd3 xh4 45.e4 xg7 46.f3 f4 47.g2+ f8 48.b2 [ Houdini 4: 48.b1 e3 49.d2 d3+ 50.c1 xa3+ 51.c2 a2+ 52.c1 a1+ 53.c2 d4 54.a8+ e7 55.b8 d5 56.a7+ f6 57.a6+ g7 58.xb5 a3 59.e2 a2 60.b2 f5 61.c4 e4 62.xa2 h5 63.b2 d4+ 64.c2 f6 65.d2 h4 66.h5 f2 67.h6+ e5 68.b3 g3+ 69.c4 e3 70.h8+ f4 71.f1 f2 72.h6+ f3 73.c6+ g4 -2.30/21 ] 48...h5 Chirila Cristian: 'Magnus is completely winning, he is never letting such positions slip away' 49.d2 h4 50.c2 b4 51.axb4 cxb4 52.a8+ Chirila Cristian: 'Black sacrifices a pawn to diver the queen to the queenside, after which no one will successfully stop the h-pawn.' [ Houdini 4: 52.c6 b3+ 53.c1 g7 54.c3 g3 55.f3 h3 56.b2 h2 57.xh2 xh2+ 58.a3 f4 59.c7 f6 60.c6+ f5 61.d7+ g6 62.c6+ f6 63.e8+ g5 -8.49/21 ] 52...g7 53.xa4 h3 54.b3 h2 55.d5 e4 Chirila Cristian: 'The nail in the coffin, the rest is just basic calculation for Carlsen.' 56.h5 e3 57.f3 e2 58.b3 [ Houdini 4: 58.b2 h6-+ ] 58...f6 59.e1 g3+ [ 59...e3+ 60.a4 a7+ 61.xb4 b7+ 62.c3 h1-+ ] 60.a4 [ Houdini 4: 60.c4 c3+ 61.b5 e5+-+ ] 60...g1 61.xe2 a7+ Chirila Cristian: 'An amazing escape by the World Champion and a heartbreaking loss for Nakamura.' [ 61...a7+ 62.b3 a3+ 63.c2 ( 63.c4 a6+-+ ) 63...a2+-+ ] 0-1

2/2/2014 – The Zurich Chess Challenge had the visit of Charles Aznavour, one of the most famous and enduring singers of the world. His music inspired the players as it was a beautiful bloodbath on the board. Aronian played like a machine against Nakamura, Carlsen's creative sacrifice vanquished Caruana and Anand won a complex game against Gelfand.

Aronian,Levon Nakamura,Hikaru Zurich Chess Challenge 2014 (4) [Chirila Christian,Houdini 4]

E63 2812 2789 02.02.2014

What a round! Three decisive results and a very tough choice for me. I decided to focus on this game because of last round's result, I was way too curious to see how Nakamura will deal with his psych crushing loss. His calm tweets in Italian, as well as his good mood before today's round were a sign of a cured mind, but was that the whole truth? 1.f3 f6 2.c4 g6 3.c3 g7 4.g3 d6 Nakamura goes for his favorite KID, I don't think Aronian had a hard time preparing for this round, Naka's love for risky and complicated positions is well known 5.g2 0-0 6.0-0 c6 7.d4 a6 [ 7...b8 8.f4 a6 9.c1 h6 10.b3 g5 11.d5 gxf4 12.dxc6 fxg3 13.hxg3 b5 With a good game for black in Carlsen- Nakamura Sinquefield 2013 ] 8.h3 b8 9.e4 b5 10.d5 A rare move, but again the top scoring pick in this position, Aronian's theoretical preparation is the best in the world by a large margin and we can see why in this game [ 10.e5 d7 11.e6 ( 11.cxb5 axb5 12.g5 dxe5 13.xc6 exd4 14.xb5 b6 15.a7 a6 16.xc8 xc6 ) 11...fxe6 12.d5 ce5 ( Houdini 4: 12...a5 13.cxb5 axb5 14.d4 xd4 15.xd4 b4 16.e4 c5 17.dxc6 xc6 18.d1 ce5 19.h6 a6 20.xf8 xf1 21.xe7 xe7 22.xf1 d5 23.d2 c5 24.g2 a8 25.f4 c6 26.f3 e4 27.c1 a7 28.e1 b6 29.g5 xa2 30.xe4 dxe4 -0.24/20 ) 13.d4 b6 ( Houdini 4: 13...bxc4 14.f4 d3 15.c6 e8 16.dxe6 b6 17.exd7 xd7 18.a5 xb2 19.xb2 xb2 20.c1 f7 21.e1 h8 22.e2 xe2 23.xe2 e6 24.c6 f5 25.h2 c5 26.g1 xg1+ 27.xg1 f6 28.b4 b8 29.d5 b2 30.xf6 exf6 31.d4 g8 32.c2 xc2 33.xc2 0.21/19 ) 14.cxb5 xd5 with a very complicated battle, the type of position in which Hikaru feels like a fish in the water ( Houdini 4: 14...exd5 15.f4 c5 16.bxc6 f7 17.f5 xd4+ 18.xd4 xf5 19.xd5 xd5 20.xd5 e6 21.g2 e5 22.c3 c8 23.g4 e6 24.d2 e7 25.e3 e4 26.ac1 xa2 27.a5 e6 28.xa6 d5 29.b4 a8 30.b7 e5 31.xf8+ xf8 0.87/18 )] 10...b4 [ 10...a5 11.cxb5 axb5 12.b4 c4 13.d4 d7 14.a4 bxa4 15.b5 b6 16.d3 a8 17.c6 xc6 18.bxc6 c8 19.a3!N ( 19.e3 was seen in Matlakov, M- Ding, L 2012, 0-1 ) 19...a6 20.b5 ab8 21.xc7 xd3 22.xd3 fc8 23.a6 a8 24.b4 ] 11.e2 a5 12.c2 c6 [ 12...c5!? 13.f4 d7 14.e1 b3 15.d3 ( Houdini 4: 15.e2 bxa2 16.xa2 b3 17.e3 a5 18.d3 b6 19.c1 d4 20.xd4 cxd4 21.xa5 xc4 22.a2 b6 23.d3 e5 24.dxe6 xe6 25.b3 d7 26.xd4 b6 27.d1 c5 28.e3 d7 29.ce2 a8 30.da1 xa2 31.xa2 c8 -0.01/22 ) 15...bxa2 ( -0.19 Houdini 4 Pro x64 B: 15...b4 16.d2 xb2 17.xb4 cxb4 18.ab1 c5 19.d1 c3 20.axb3 xe1 21.xe1 axb3 22.xb3 xb3 23.xb3 a5 24.c2 b6 25.d3 d7 26.h4 c8 27.f1 b8 28.g2 h6 29.f1 c8 30.h5 a4 31.xb4 xb4 32.cxb4 xc4 -0.75/19 ) 16.xa2 b3 ] 13.fd4N [ RR 13.ed4 b7 14.dxc6 xc6 15.xc6 xc6 16.d4 a8 17.d1 c7 18.e2 d7 19.b3 c5 20.b2 e6 21.ab1 fe8 22.c2 xb2 23.xb2 d5 24.exd5 exd5 25.e3 dxc4 26.xc4 xg2 27.xg2 e5 Gajewski,G (2653)-Moranda,W (2560) Poland 2013 1-0 (34) ] [ RR 13.ed4 c5 14.b3 e5 15.dxe6 xe6 16.d1 xb3 17.axb3 b6 18.f4 bd8 19.g4 c8 20.h2 fe8 21.f1 b7 22.g3 e6 23.d2 de8 24.f3 d7 25.ad1 d4+ 26.h1 e5 27.c1 f6 Gajewski,G (2637)-Jones,G (2638) Reykjavik 2013 0-1 (71) ] 13...cxd5 [ 13...c5 14.b3 xb3 15.axb3 e6 Would have been an interesting alternative, but Hikaru will almost always chose an open center ] 14.exd5 c7?! In my opinion this move only helps white develop easier, necesarry would have

been [ 14...e5 15.b3 0.70 15.dxe6 fxe6 16.b3 e5 ] 15.b3 e5 [ 15...d7 16.b2 c5 17.f4 e8 ( Houdini 4: 17...b6 18.c6 e5 19.xb8 xb8 20.e2 f5 21.d2 h5 22.ad1 b6 23.c1 ab7 24.h2 a5 25.f4 f6 26.e3 c7 27.fxe5 fxe5 28.d3 xd3 29.xd3 c5 30.d2 a4 0.61/22 ) 18.fe1 White's position is very pleasant, black's knights are stepping on each other's feet, or bucks... ] 16.dxe6 fxe6 17.a3 bxa3 18.d2 b7 19.xa3 [ Houdini 4: 19.c6 a8 20.xa3 d7 21.a5 xa5 22.xa5 c8 23.xa8 xa8 24.f3 e5 25.g4 c6 26.b4 e8 27.b3 b7 28.c5+ d5 29.d1 f7 30.g3 h6 31.e1 f4 32.e2 g5 0.95/21 ] 19...e5 [ Houdini 4: 19...d8 20.a5 c5 21.b4 xb4 22.xb4 xb4 23.a4 c5 24.b3 c7 25.f4 d7 26.e1 b6 27.b4 e5 28.d5 xd5 29.xd5+ h8 30.c5 xh3 31.c4 dxc5 32.xc5 a5 33.a4 b6 34.d1 f5 35.g2 c6 0.57/21 ] 20.c6 White already has a crushing advantage, all his pieces are well coordinated while black's pieces are moving back and forth in an attempt to find theor optimal spot a8 [ 20...f5 21.a2 a8 22.b4 a5 transposes ( Houdini 4: 22...d7 23.g4 e6 24.e3 a5 25.d1 ac8 26.d3 e7 27.c3 b8 28.g5 f7 29.b5 e8 30.a7 f6 31.c6 a8 32.h6 g7 33.xg7 xg7 34.d2 a6 35.e4 b6 36.h2 0.83/22 )] 21.b4 [ Houdini 4: 21.g4 d7 22.a5 xa5 23.xa5 c8 24.xa8 xa8 25.g3 c6 26.d1 c8 27.b4 h6 28.c5 b7 29.f3 e8 30.a2+ h8 31.f2 xf3 32.xf3 xf3 33.xf3 xf3 34.e1 g7 35.f2 d2 36.xe5 dxe5 37.xf3 1.28/21 ] 21...a5 22.a2 f5 [ 22...e6 23.d5 1.27 controlling the d5 square is of imperial importance 23.d5 xd5 24.cxd5 f5 ( Houdini 4: 24...d7 25.b4 b5 26.c1 d8 27.c3 d3 28.e4 axb4 29.xa8 xa8 30.xa8 xa8 31.xb4 xe4 32.xe4 a4 33.c8+ f8 34.d2 f7 35.c7+ g8 36.f3 c5 37.e3 h5 38.e2 e4 39.g2 a5 40.g4 a2 41.f1 hxg4 42.hxg4 a1 43.xc5 dxc5 44.b7 a3 45.c4 d6 0.51/22 ) 25.b4 h5 26.bxa5 c5 white is in control but the game is not done yet, the bishop on g2 is out of game and if black will be able control the "a" pawn the tides can easily change ] [ Houdini 4: 22...f7 23.e3 e4 24.c6 d5 25.xa5 xa5 26.xa5 xa5 27.xa5 dxc4 28.bxc4 xc4 29.f4 a6 30.d2 e6 31.xe6 xe6 32.d1 c8 33.d6 xd6 34.xd6 f7 35.a6 c7 36.g5 e7 37.h2 d7 38.xf6 xf6 39.xe4 d2 40.g2 0.69/22 ] 23.d5 xd5 24.xd5+ h8 25.b4 [ Houdini 4: 25.g4 d7 26.b4 c6 27.c3 e4 28.xe4 ae8 29.g5 axb4 30.xb4 d7 31.e1 xe1+ 32.xe1 h6 33.e6 e8 34.a8 d8 35.xd8 xd8 36.xd8 xd5 37.cxd5 xd8 38.c4 f6 39.g2 e7 40.c3 xc3 41.xc3+ h7 42.e3 1.05/18 ] 25...xh3 26.b1 f5 27.b2 d7 [ Houdini 4: 27...c8 28.e3 e6 29.bxa5 xd5 30.cxd5 c5 31.b6 e4 32.a4 f6 33.a6 g4 34.d2 f5 35.c3 ac8 36.xg4 xg4 37.b5 c4 38.a7 a4 39.c1 f3 40.xd6 a2 41.c7 g8 42.e6 0.40/21 ] 28.bxa5 c6 29.c3 c5 30.e3 e4 31.a6 White is simply playing the best moves, black's position is getting worse and worse with every move [ Houdini 4: 31.xc6 xc6 32.b6 d7 33.a6 h3 34.xc5 dxc5 35.xe4 f5 36.d6 h5 37.g2 d4 38.e4 g5 39.c2 g4 40.a7 f5 41.a2 f3+ 42.h2 f7 43.a4 e7 44.c6 xa7 45.xa7 xa7 46.b7 a2 47.d5 xf2+ 48.xf2 xf2+ 49.g2 1.26/18 ] 31...d3 [ 31...xa6 32.b7 2.40 32.xa6 xa6 33.xa6 xc3 34.c2 xd5 35.cxd5 g7 36.xd6 ] [ Houdini 4: 31...d7 32.xc5 dxc5 33.xe4 xd5 34.cxd5 xb2 35.xb2+ g7 36.xg7+ xg7 37.xc5 fc8 38.b7 c2 39.d6 d2 40.g2 f7 41.f3 e8 42.e3

d5 43.e4 f5 44.f4 b5 45.d4 d7 46.c3 xa6 47.c7+ e6 48.c5+ xc5 49.xc5 xd6 50.xh7 d5+ 51.c6 d6+ 52.c7 0.61/21 ] 32.b7 c8 [ 32...xb7 would have been a more resilient defense, the position remains extremely difficult though 33.axb7 ab8 34.b5 ( 34.xe4? b4; Houdini 4: 34.b3 c5 35.xc5 dxc5 36.xe4 d4 37.a8 e5 38.g2 h6 39.xb8 xb8 40.b6 g7 41.f4 e7 42.g4 h7 43.g5 hxg5 44.xg5+ h6 45.e6 f6 46.a7 e8 47.a3 e7 48.h2 h4 49.a7 e8 50.a1 h8 51.xh8+ xh8 52.xc5 g7 53.d7 2.19/20 ) 34...d7 35.xe4 c5 36.d5 ] 33.xe4 xd5 34.cxd5 g4 [ Houdini 4: 34...e5 35.g5 g4 36.b1 h6 37.b4 e2 38.a2 d3 39.xd3 xd3 40.b3 hxg5 41.xd3 g4 42.a7 h7 43.a4 f6 44.xg4 g5 45.b6 g6 46.e3 h5 47.c4 e5 48.g2 g6 49.c6 3.92/19 ] 35.xd3 xe4 36.db3 [ 36.b1 would have been a stylish way to protect the d5 pawn xa6 37.xg7 xg7 38.b7+ f7 39.xa6+- ] 36...xd5 37.e2 c6 [ Houdini 4: 37...e5 38.a7 fc8 39.d3 xd3 40.xd3 e8 41.g5 g8 42.g2 ec8 43.f4 c2+ 44.f3 b2 45.d7 d4 46.xd4 a2 47.4xd6 8xa7 48.f6 f8 49.xa7 xa7 50.e4 f7 51.d4 b7 52.f6+ e7 53.c6 d7 54.e5 5.51/20 ] 38.a7 d5 [ Houdini 4: 38...a4 39.b5 xb5 40.3xb5 g8 41.b8 xa7 42.xa7 f6 43.5b7 xb8 44.xb8 d5 45.a7 g5 46.g2 h6 47.d7 f8 48.f3 e8 49.xd5 f7 50.d6 h5 51.c5 h4 52.g4 e5 53.a6 hxg3 54.fxg3 g7 55.e3 b8 56.f2 e5 57.xg5 f7 58.g4 8.81/22 ] 39.xg7! the most precise xg7 40.d4+ h6 41.e3+ h5 [ 41...g5 42.g4 g6 43.b7+- ] 42.g4+ h4 43.h6+ xg4 44.h3+ f4 45.f3+ What a crushing performance from Aronian, it seems like Aronian is being motivated by Carlsen's performance and doesn't want to lose the battle without a fight. So far both title contenders are simply crushing their opposition and playing marvelous chess! 1-0

Carlsen,Magnus Caruana,Fabiano Zurich Chess Challenge 2014 (4) [Houdini 4]

C65 2872 2782 02.02.2014

1.e4 e5 2.f3 c6 3.b5 f6 4.d3 c5 5.xc6 dxc6 6.h3 [ RR 6.bd2 g4 7.h3 h5 8.f1 d7 9.g3 xf3 10.xf3 g6 11.e3 e7 12.0-0-0 0-0-0 13.e2 he8 14.b1 b6 15.h4 b7 16.h5 xe3 17.xe3 c5 18.hxg6 hxg6 19.g3 a5 20.h7 h8 Anand,V (2775)-Carlsen,M (2870) Chennai 2013 ½-½ (32) ] 6...d7 [ RR 6...e6 7.e2 d7 8.e3 f6 9.xc5 xc5 10.e3 e7 11.c3 0-0-0 12.0-0-0 b8 13.d4 exd4 14.xd4 d7 15.f4 b6 16.xe6 xe6 17.c5 d6 18.b3 hd8 19.h5 h6 20.g4 e7 21.xd6 Nakamura,H (2772)-Fressinet,L (2708) Elancourt 2013 ½-½ (31) ] 7.e3 d6 8.c3N [ RR 8.bd2 0-0 9.0-0 e8 10.c3 f8 11.d4 g6 12.c2 exd4 13.cxd4 f4 14.fe1 f6 15.f1 e6 16.g3 xe3 17.xe3 f4 18.a3 a5 19.d2 h6 20.c1 d7 21.c2 d6 22.e5 e6 Inarkiev,E (2671)-Aronian,L (2783) Mainz 2010 ½-½ (45) ] [ RR 8.bd2 0-0 9.0-0 c5 10.c4 b5 11.cd2 b8 12.a4 b4 13.b3 e7 14.a5 d7 15.d2 c6 16.xc6 xc6 17.e2 ae8 18.f3 d7 19.fc1 e6 20.c3 a6 21.cxb4

cxb4 22.c4 f5 Morozevich,A (2678)-Kramnik,V (2807) Monte Carlo 2003 1-0 (65) ] [ RR 8.bd2 c5 9.c4 0-0 10.0-0 e8 11.fd2 f8 12.xd6 cxd6 13.f4 exf4 14.xf4 g6 15.g3 e6 16.h2 d5 17.h5 f6 18.ae1 f7 19.f5 e6 20.h5 f7 21.f5 e6 ½-½ (21) Hamdouchi,H (2600)-Bacrot,E (2720) Belfort 2010 ] 8...c5 9.0-0 f8 10.d2 g6 11.c4 e6 12.e2 d7 13.xd6+ cxd6 14.f4 exf4 15.xf4 xf4 16.xf4 b6 17.h5 d5 18.d4 c4 19.b3 [ Houdini 4: 19.e5 0-0-0 20.a4 a5 21.b3 cxb3 22.cxb3 b7 23.af1 df8 24.4f2 h6 25.c1 e7 26.b2 hg8 27.f4 h8 28.e2 c8 29.4f3 c7 30.g3 g5 31.f6 b4 0.55/21 ] 19...c6 [ Houdini 4: 19...c8 20.e5 cxb3 21.cxb3 e7 22.d2 c2 23.d1 c6 24.c1 xc1 25.xc1 0-0 26.b1 c8 27.f1 h6 28.h2 b5 29.d3 a3 30.b1 b4 31.d3 a5 32.g3 0.05/22 ] 20.af1 0-0-0 21.bxc4 xc4 22.xf7 xf7 23.xf7 d7 24.xd7 xd7 25.exd5 g6 [ Houdini 4: 25...d8 26.xh7 c8 27.xg7 d7 28.g8+ b7 29.e6 xd5 30.h4 a6 31.a3 c3 32.f2 xd4 33.xd4 xd4+ 34.f1 xh4 35.g4 h3+ 36.f2 xa3 37.c8+ a5 38.f5+ b5 39.g5 e7 40.g6 b6 41.f4 g7 42.d6+ b7 43.d5+ b6 44.f7 d4+ 45.e2 e4+ 46.d2 0.49/21 ] 26.g4+ c7 27.e6 b7 28.e7+ [ Houdini 4: 28.f6 e2 29.e7+ a6 30.d6 h6 31.d7 d8 32.h2 xd7 33.xd7 xe3 34.d6 b7 35.c4 e8 36.f4 g5 37.f5 b8+ 38.e5 c8 39.e4+ b8 40.d5 f8 41.e5+ c8 42.g1 b7 43.e4+ b8 44.g4 f7 45.d5 f6 1.06/23 ] 28...c7 29.e4 d7 30.d6+ a6 31.f4 c8 32.h2 [ Houdini 4: 32.e2+ b7 33.c4 e8 34.d3 c6 35.e5 c8 36.b3 a6 37.a3 d7 38.d3 f8 39.c5+ b5 40.c2 b7 41.a4 c6 42.b3 a8 43.b5 b7 44.c4 d8 45.f7+ d7 46.b3 h5 47.h2 g5 48.c4 g4 49.g3 gxh3 50.gxh3 0.68/23 ] 32...c4 [ Houdini 4: 32...b5 33.a4 b4 34.d5 g5 35.e7 d8 36.xg5 a5 37.f6 xa4 38.c4 bxc3 39.xc3 c8 40.d4+ b5 41.d3+ c5 42.e3+ b4 43.b1+ c4 44.a2+ b4 45.a6 d8 46.d2+ c5 47.a5+ c4 48.b4 c8 49.a3 h5 50.b4+ xd5 51.a5+ e4 52.xh5 c3 53.b4 b3 54.h4+ e5 55.e7+ xe7 56.dxe7 0.28/23 ] 33.g3 c8 [ Houdini 4: 33...h5 34.xg6 xd4 35.xh5 e6 36.a4 d2 37.h4 c4 38.f5 c6 39.f1+ b7 40.c4 xa4 41.f4 c2 42.f3+ a6 43.h5 xc4 44.h6 c2 45.e1 d1 46.f1+ b5 47.f6 d3 48.g3 b4 49.d7+ b7 50.e7 xd7 51.e4+ d5 52.xb4+ c6 53.h7 h5+ 54.h4 xh4+ 55.xh4 0.81/19 ] 34.d3+ b7 35.c4 c6 36.b3 a8 [ Houdini 4: 36...e4 37.c5 xd4 38.f3+ c6 39.f7+ a6 40.d7 xc5 41.f1+ b7 42.f3+ c6 43.f7 c7 44.xc7 xc7 45.d8+ xd8 46.g8+ e7 47.xh7+ f8 48.xg6 a4 49.f6+ g8 50.e6+ g7 51.g3 a3+ 52.h4 f8 53.e5+ g6 54.e4+ g7 55.e3 g6 56.g4 d8+ 57.g5 2.60/22 ] 37.a4 e8 [ Houdini 4: 37...d8 38.c5 d7 39.f2 bxc5 40.dxc5 a6 41.c4 b8 42.e3 c8 43.f4 b8 44.d4 c8 45.d2 b7 46.c4 b8 47.a5 h5 48.d2 c8 49.g5 a5 50.h4 b7 51.b3+ a6 52.e3 1.43/24 ] 38.a5 b7 [ Houdini 4: 38...bxa5 39.d5 b7 40.a4 b8 41.xa5 h5 42.c7 h4 43.xh4 g5 44.xg5 g8 45.e7 xe7 46.dxe7 b7 47.h4 a5 48.c5 a4 49.g3 a3 50.f4 e8 51.f6 a2 52.c6+ b6 53.d4+ c7 54.e5+ b6 55.c7 a1 56.xa1 xc7 57.e5+ d7 58.d6 a8 59.g4 a2 60.h5 f2+ 61.g5 e2 62.f6 f2+ 63.g6 e2 5.81/22 ] 39.c5 [ Houdini 4: 39.d5 c5 40.a6+ c8 41.f3 d8 42.f7 xd6 43.b7+ d8 44.h4+ f6 45.a8+ d7 46.xa7+ e8 47.b8+ f7 48.xf6 xc4 49.a7 xd5 50.d8 xd8 51.xd8 e6 52.a8 e5 53.xb6 h5 54.g8 f5 55.f7+ e5 56.xg6 h4 57.f2 d5 58.e1 d4 59.f2+ c4 60.xh4 c3 61.f6+ b4 62.e4+ c5 63.e7+ b6

64.h4 23.83/20 ] 39...c8 [ Houdini 4: 39...f8 40.d7 d8 41.d6 xd7 42.axb6 a5 43.f3+ a6 44.c7 xd4 45.b7 xc5 46.xd8 a7 47.h4 c7+ 48.g3 xb7 49.f2+ b8 50.f8+ c7 51.c5+ d7 52.xa5 d6 53.c5+ e6 54.c4+ d6 55.c5+ e6 4.46/23 ] 40.axb6 axb6 41.d5 xc5 42.a4 e3 43.a8+ d7 44.b7+ e8 45.d7+ d8 46.h4+ e7 47.c8+ 1-0

Gelfand,Boris Anand,Viswanathan Zurich Chess Challenge 2014 (4) [Houdini 4]

D11 2777 2773 02.02.2014

1.d4 d5 2.c4 c6 3.f3 f6 4.e3 g4 5.c3 e6 6.h3 h5 Anand keeps believing in this solid variation, and repeats it after using it against Caruana yesterday. To be fair his position did seem to be acceptable from the opening in that game. 7.g4 g6 8.h4 Capturing the bishop is usually the go-to way of obtaining a slight but stable advantage. The pair of bishops coupled with the extra space promises White long term prospects, but Black is relying on his solid structure and overall better dark-square control. [ RR 8.e5 bd7 9.h4 dxc4 10.xg6 hxg6 11.g5 d5 12.xc4 b4 13.d2 e7 14.b3 7b6 15.e2 0-0-0 16.a3 a5 17.0-0-0 e5 18.dxe5 xe5 19.xd5 xd2+ 20.xd2 xd5 21.xd5 cxd5 22.b4 b8 Caruana,F (2796)-Vachier Lagrave,M (2719) Tromso 2013 ½-½ (55) ] 8...b4 [ RR 8...bd7 9.a3 e7 10.cxd5 cxd5 11.xg6 hxg6 12.g2 g5 13.d3 c8 14.d2 b6 15.b3 d6 16.a4 a6 17.a5 bd7 18.e4 e5 19.xd5 xd5 20.exd5 exd4 21.0-0 0-0 22.f5 g6 23.xg5 Gelfand,B (2764)-Vachier Lagrave,M (2719) Tromso 2013 ½-½ (43) ] 9.b3 e7N [ RR 9...c5 10.xg6 hxg6 11.g2 c6 12.cxd5 exd5 13.dxc5 d4 14.exd4 xd4 15.a4+ d7 16.xd7+ xd7 17.0-0 xc3 18.d1 c8 19.bxc3 e2+ 20.f1 xc1 21.axc1 c7 22.b1 ab8 23.d4 d7 24.c4 Rodshtein,M (2623)-Gelfand,B (2755) Netanya 2009 ½-½ (51) ] 10.d2 a5 11.xg6 hxg6 12.cxd5 exd5 13.f3?! This is possibly where Gelfand starts going wrong. Normally it's a good idea to take control of e4 by putting the structure in this way, but this allows a very quick a4-a3 and remember that Black has the better dark-square control... a4 14.c2 a3 The queenside is weakened. 15.b3 bd7 16.0-0-0 0-0 White's king is safer from a pawn storm because of his pawn shield, but the position is still double edged [ Houdini 4: 16...0-0-0 17.b1 b8 18.d3 f8 19.h4 e8 20.e1 c7 21.f2 e8 22.g3 d6 23.f2 fe6 24.f4 f8 25.h5 gxh5 26.xh5 xh5 27.gxh5 b4 28.g1 fe6 29.f5 g5 -0.26/22 ] 17.b1 fc8 18.h4 b6 19.g5?! [ 19.h5! seemed more direct and to thepoint. This would be a possible continuation: gxh5 ( 19...g5 20.h6 g6 21.e4 ) 20.g5 h7 21.g6! f8 22.gxf7+ with initiative. ( Houdini 4: 22.xh5 fxg6 23.h2 xc3 24.xc3 c5 25.h3 c6 26.dxc5 xc5 27.d4 f6 28.b4 c6 29.g4 xd4 30.xd4 e6 31.d1 f7 32.hd2 f6 33.h2 c7 34.h7 g5 0.74/21 )] 19...h5 With the kingside locked it's unclear what White is going to do. The knight being out of play is not a major concern in this position. 20.h3 e8 21.he1 ad8 22.g4 d6 23.e2 xd2 24.xd2 d7 25.f4 xf4 26.exf4 f5! Black forces White into an inferior pawn structure. Gelfand must hurry and prove activity before his position becomes weak and passive. 27.gxf6 xf6 28.e5 xg4! A transformation of advantages in its purest form! This is a veyr difficult move to play as it completely fixes White's structure, but Anand knows that the pawns

can only advance so far because of White's king safety issues and his own passed pawn will give him counterplay. 29.fxg4 xe5 30.fxe5 [ 30.dxe5 30...e6 -0.49 e7 was double edged and it's hard to say who is better. ] 30...e7 31.h1?! [ 31.f1! was necessary to preserve the open file xh4 32.f4 e7= and although Black is up a pawn it is not easily exploited. ] [ Houdini 4: 31.f1 f8 32.xf8+ xf8 33.c2 f3 34.g5 f7 35.b4 g3 36.b5 xh4 37.bxc6 bxc6 38.b3 c5 39.dxc5 c4+ 40.xa3 xc5+ 41.b4 e3+ 42.a4 xe5 43.b7+ f8 44.a8+ e7 45.b7+ e6 46.c8+ f7 47.b7+ f8 -0.15/25 ] 31...f8 The open file is of real importance, here Black already stands better because of it. 32.h5 f7 33.h6 f3! Black isn't afraid of any ghosts created by the h-pawn, he knows his attack is faster. 34.e1?! simply gifiting away a pawn. [ Houdini 4: 34.h7+ h8 35.e1 xg4 36.c2 xh7 37.e6 g8 38.e3 g5 39.e7 e8 40.b4 f4 41.e6+ f7 42.e3 g6+ 43.b3 e4 44.xe4 dxe4 45.xe4 f7 46.g4 g6 47.xa3 xe7 48.b5 cxb5 49.b4 e2 50.g3 d2 51.xb5 xd4 52.b6 b4+ 53.c5 f4 -0.99/20 ] 34...gxh6 35.e6 e8 36.g5? [ Houdini 4: 36.e7 g7 37.e3 xe3 38.xe3 f6 39.f3+ xe7 40.b4 d7 41.xa3 e4 42.h3 xd4 43.a3 xg4 44.xh6 d6 45.h7 b5 46.h8 g2 47.d8+ c7 48.f8 g5 49.f7+ b6 50.g7 g4 51.c1 g3 52.d1 g1+ 53.e2 d4 54.g6 g2 55.f2 a1 56.xg2 d3 57.d6 xa3 58.f2 -2.35/22 ] 36...f5+ With two extra pawns and the weakness one e6 the game is an easy wrap. A deceptively simple game! 0-1

2/3/2014 – The Classical portion of Zurich 2014 has come to an end. Carlsen comes out on top after having an effortless draw against Anand. Nakamura had no chances against Gelfand and they agreed to a draw which forced a rapid game won by the Israeli. Caruana won a very nice game against Aronian in a grueling endgame in which the Armenian was not his usual solid defender.

Anand,Viswanathan Carlsen,Magnus Zurich Chess Challenge 2014 (5) [Houdini 4]

C65 2773 2872 03.02.2014

1.e4 e5 2.f3 c6 3.b5 f6 4.d3 c5 5.xc6 dxc6 6.h3 d7 7.e3 d6 8.bd2 0-0 9.0-0 e8 10.c4 f8 11.d4N [ Houdini 4: 11.d2 h6 12.c3 f6 13.fd2 e7 14.a3 g6 15.b4 h4 16.h1 d7 17.a5 c8 18.fe1 f6 19.ad1 e6 20.ac4 b6 21.xd6 xd6 0.32/20 ] [ RR 11.c3 c5 12.xd6 xd6 13.c2 b6 14.ad1 b7 15.fe1 g6 16.h2 ad8 17.f1 f6 18.c1 h6 19.h2 a6 20.c4 c8 21.a3 a5 22.d2 a4 23.f1 d6 24.h1 ed8 25.c2 d7 Nepomniachtchi,I (2720)-Eljanov,P (2742) Moscow 2010 0-1 (60) ] 11...exd4 12.xd4 c5 13.d3 b6 14.xd6 xd6 15.xd6 cxd6 16.fd1 b7 17.xd6 xe4 18.e1 ad8 19.ad1 e6 20.xd8 xd8 21.xd8+ xd8 22.f3 d5 23.a3 c6 24.f2 f6 25.d3 f8 26.e2 e7 27.d2 d7 28.f4 f7 29.b3 e7 30.h4 d5 31.xd5 xd5 32.f4 c6 33.g3 f7 34.f4 g6 35.g3 f7 36.b8 a6 37.f4 g6 38.g3 h5 39.f2 f7 40.g3 g6 ½-½

Caruana,Fabiano Aronian,Levon Zurich Chess Challenge 2014 (5) [Ramirez Alejandro,Houdini 4]

C89 2782 2812 03.02.2014

1.e4 e5 2.f3 c6 3.b5 a6 4.a4 f6 5.0-0 e7 6.e1 b5 7.b3 0-0 8.c3 d5 9.exd5 xd5 10.xe5 xe5 11.xe5 c6 12.d3 d6 13.e1 f5 14.f3 h4 15.g3 h3 16.e3 An idea that is already a few years old. [ 16.xd5 is the theoretical main line, but Black has proved ways to equalize here. ] [ RR 16.xd5 cxd5 17.xd5 ad8 18.g2 xg2+ 19.xg2 xd3 20.e3 f6 21.d2 b4 22.d4 bxc3 23.xc3 fe8 24.f3 f7 25.ac1 xe1 26.xe1 e7 27.g4 h5 28.h3 g6 29.b3 d7 30.d4 c4 Karjakin,S (2762)-Inarkiev,E (2695) Nizhny Novgorod 2013 ½-½ (41) ] 16...xd3 17.d2 f5 18.d4N Caruana's novelty. White retains some pressure due to the fact that Black's structure is still somewhat vulnerable and White's development is more coordinated. [ RR 18.xf5 xf5 19.d4 fd8 20.a4 f8 21.e4 h6 22.h4 g6 23.ad1 h5 24.c1 b4 25.e3 d5 26.ee1 b4 27.e3 ½-½ (27) Ivanchuk,V (2751)-Aronian,L (2739) Nice 2008 ] [ RR 18.ad1 fe8 19.xf5 xf5 20.xd5 cxd5 21.b3 e6 22.c5 c7 23.d4 ac8 24.b4 d7 25.c2 xe1+ 26.xe1 e8 27.xe8+ xe8 28.e3 d8 29.xd5 c6 30.e3 f3 31.f5 e4 32.e3 f3 Polgar,J (2707)-Leko,P (2753) Wijk aan Zee 2008 ½-½ (35) ] 18...fe8 19.a4 h6 20.g2 f8?! [ 20...f8 just puts the bishop in a slightly safer square and allows a future b5 in some lines, which we will see is not possible with the bishop on d6. ] 21.xe8+ xe8 22.axb5 axb5 23.xf5 xf5 24.xd5!? [ 24.a6 also gave White a minimal amount of initiative. Here Black would like to reply something alone the lines of b4/c5 but he can't because of the bishop on d6 and the knight on d5. ] 24...cxd5 25.a6 The structure is shattered and only White can hope for the advantage, but it shuldn't be too serious yet. e7?! Misassessing the situation

[ 25...e5! was important. 26.xe5 ( 26.b3 c2 27.xe5 xb3= should not be worrisome for Black. ) 26...xe5 allows Black's rook to penetrate onto e1 or e2 with sufficient counterplay for equality. ] [ Houdini 4: 25...e5 26.c5+ g8 27.b6 b8 28.b3 xb6 29.xb6 h7 30.f4 c2 31.a5 d6 32.c6 g6 33.f3 f5 34.e3 d7 35.e5+ xe5 36.fxe5 f5 37.c5 g4 38.f8 h3 39.xg7 xh2 40.f4 h5 41.f6 g2 0.15/24 ] 26.f1 b4 27.e3 d3 28.a5 bxc3 29.bxc3 Black loses the e4 pawn by force now. He needs to activate as soon as possible to obtain counterplay. d8?! Natural looking, but since the pawn is lost regardless it was better to simply gift it right away. [ 29...b8 30.xd5 d8 31.c5 e4+ 32.h3 b2 with real activity. ] 30.a8 f6 31.f3 e7 32.a7! A very good move. With the rook on the 7th rank it is easier to create threats. d6 [ 32...d8 33.b6 e8 34.xd5 d6 was still preferable to the gaim continuation. Letting the knight remain solidly around the king eases White's consolidation. ] 33.d7 a3 34.xd5 g8 Black is down a pawn but he has real hopes of holding thanks to his pair of bishops. Ideally he would like to exchange his dark squared bishop for the knight to obtain an opposite colored bishops position. [ 34...c1 35.c5+ didn't work just yet. ] 35.h4 c1 36.g4 c4 37.c5 e6 38.f2 a8 39.g4 a2 [ 39...c8!? 40.xc8+ ( 40.a5 f4 is also not easy as now Black controls c4. ) 40...xc8 since this endgame is not easy for White at all due to the pair of bishops it was possible that this was Black's best hope of holding. ] 40.g3 a6?! 41.c7 d2? The start of a strange and bad plan. Aronian spent a lot of time on this move which makes it even more bizarre. [ Houdini 4: 41...a3 42.e4 d5 43.f4 c6 44.a7 c1+ 45.f5 f7 46.h5 b2 47.a8+ h7 48.d8 e6+ 49.f4 a3 50.b8 c1+ 51.g3 a3 52.b7 g8 53.f4 c1+ 54.e3 a3 55.a7 b2 56.d2 d5 57.b7 a3 0.59/24 ] 42.e4 e1+ 43.f2 xf2+ 44.xf2 With the darksquared bishops off the board it is much easier for White to make progress as he doesn't have to worry about his knight being exchange unfavorably. a2+ [ 44...f5!? 45.c5 d6 46.xe6 xe6 47.gxf5 e5 48.f6 gxf6 49.c4 is not pleasant at all but maybe it can be held? More analysis is needed. ] 45.g3 c2 46.f4 a2 47.h5 Fixing the structure on the kingside. White is not winning yet but it looks uglier and uglier for Black. a5 48.c5 d5 49.c8+ f7?? The final mistake [ 49...h7 50.d7 was unpleasant of course but Black isn't dead yet after g5+ 51.hxg6+ xg6 ] [ Houdini 4: 49...h7 50.d7 g5+ 51.hxg6+ xg6 52.c7 g7 53.c4 f7 54.c5 h5 55.gxh5 xh5 56.c6 a3 57.c5+ g6 58.c8 c3 59.c7 xc5 60.g8+ f7 61.c8 xc8 62.xc8 g6 63.c7+ e6 64.c6+ e7 65.e3 e8 66.a6 f7 67.f4 d7 68.b6 c8 69.d6 e7 70.c6 d7 71.b6 e8 72.e4 d7 73.d5 f7 74.b7 1.66/26 ] 50.c4! Nice tactics a8 [ 50...xc4 51.b7 a4 ( Houdini 4: 51...b5 52.d6+ e6 53.xc4 d7 54.e4 b7 55.g8 e6 56.a8 b4 57.c8 d7 58.c5 b3 59.a5 b7 60.a6 b4 61.a7+ e8 62.d5 f8 63.a8+ e7 64.d6 b3 65.a7+ f8 66.e4 g8 67.f5 b4+ 68.d5 h8 69.xg7 f4 70.f5 xf3 71.c7 f2 72.xh6 a2 73.f5 a4 74.c4 a5+ 75.e4 e5+ 76.f4 5.60/25 ) 52.d6+ e6 53.xc4+- ] 51.c7+ g8 [ Houdini 4: 51...e8 52.e6 a3 53.xg7+ d8 54.e6+ e8 55.f5 xf3+ 56.g6 f1 57.xh6 f3 58.g5 fxg5 59.xg5 e4 60.h6 b1 61.f4 h1 62.a7 c2 63.b7 b1 64.c7 d8 65.f7 e8 66.b7 e4 67.a7 c2 68.b7 3.29/23 ] 52.e6 The kingside cannot be held together and the rest is a simple mop up. a3 53.xg7+ h8 54.f5 xf3 55.g6 e2 56.xh6+ g8 57.g6+ h8 58.xf6 f3+ 59.f4 xc4 60.g5 g8 61.h6 a3 62.g5 a7 63.g6 c7 64.h3 c8 65.g5 d8 66.h7 1-0

Nakamura,Hikaru Gelfand,Boris Zurich Chess Challenge 2014 (5) [Houdini 4]

B30 2789 2777 03.02.2014

1.e4 c5 2.f3 c6 3.c3 e5 4.c4 e7 5.d3 f6 6.d2 d6 7.f1 g4 [ RR 7...d7 8.e3 b6 9.ed5 0-0 10.xb6 axb6 11.0-0 g5 12.a4 xc1 13.xc1 e6 14.d2 h6 15.f4 exf4 16.xf4 g5 17.af1 e5 18.b3 ad8 19.d5 g6 20.4f2 xd2 21.xd2 d7 22.df2 Leko,P (2737)-Gelfand,B (2738) London 2012 ½-½ (59) ] 8.d2 [ RR 8.f3 e6 9.e3 d7 10.0-0 0-0 11.g3 b6 12.h1 f6 13.a4 e7 14.a5 xc4 15.dxc4 g5 16.f4 exf4 17.gxf4 h6 18.f5 xe3 19.xe3 xc4 20.g1 f6 21.b3 a6 22.g3 f7 Olszewski,M (2551)-Krasenkow,M (2633) Warsaw 2013 0-1 (53) ] 8...d7 9.d5 e6N [ RR 9...b6 10.xb6 axb6 11.c3 0-0 12.c2 e6 13.e3 g5 14.d5 xc1 15.xc1 e7 16.xe7+ xe7 17.c2 d7 18.xe6 xe6 ½-½ (18) Inarkiev,E (2566)-Roiz,M (2512) Moscow 2003 ] 10.fe3 g5 11.c3 0-0 12.d1 b6 13.xb6 axb6 14.xe6 fxe6 15.b3 d5 16.0-0 h8 17.a4 a5 18.b5 c6 19.b3 a5 20.b5 c6 21.b3 ½-½

Caruana wins Rapid, Carlsen tops Zurich 2/4/2014 – The World Champion saw his lead be seriously diminished as he was only able to score 2.0/5 in the rapid section of Zurich 2014. Caruana had an amazing performance, playing convincing chess and not once being in serious problems. His 4.0/5 was half more than Nakamura and one more than Aronian. The Armenian and the Italian shared second in the final tournament standings.

Anand,Viswanathan Aronian,Levon Zurich CC Rapid 2014 (1) [Houdini 4]

A56 2773 2826 04.02.2014

1.d4 f6 2.c4 c5 3.d5 e5 [ 0.57 Houdini 4 Pro x64 B: 3...b5 4.f3 e6 5.e4 xe4 6.d3 f6 7.0-0 bxc4 8.xc4 a6 9.b3 e7 10.c3 exd5 11.xd5 xd5 12.xd5 xc4 13.bxc4 c6 14.e1 0-0 15.b1 c7 16.e5 xe5 17.xe5 f6 0.09/20 ] 4.c3 d6 5.e4 bd7 6.f3 e7 7.g3 0-0 8.d3 [ 0.11 Houdini 4 Pro x64 B: 8.h4 a6 9.f5 b6 10.e2 xf5 11.exf5 bd7 12.0-0 c8 13.a4 d8 14.a5 e8 15.c2 e4 16.g4 h6 17.f4 c7 18.h3 b8 19.fe1 c8 0.49/21 ] 8...h5 [ 0.62 Houdini 4 Pro x64 B: 8...b6 9.0-0 g4 10.e1 h6 11.b3 d7 12.f1 a6 13.b2 d8 14.d3 c8 15.h4 e7 16.f3 h3 17.xh3 xh3 18.g2 a5 19.e3 d7 20.ac1 xc3 21.xc3 h5 22.g2 f5 23.exf5 xf5 24.xf5 xf5 0.11/22 ] 9.e2 a6 10.d2 [ 0.23 Houdini 4 Pro x64 B: 10.f1 df6 11.g2 b8 12.h3 e8 13.a3 d7 14.e3 c7 15.d2 b6 16.g4 f4+ 17.xf4 exf4 18.xf4 d7 19.g5 b5 20.b3 bxc4 21.xc4 b6 22.e2 d7 23.ac1 d8 0.63/21 ] 10...g6N [ RR 10...df6 11.h3 g6 12.h4 e8 13.g2 g5 14.h4 xd2+ 15.xd2 d7 16.ab1 c7 17.a4 b8 18.e3 b6 19.b3 b7 20.b2 f6 21.c2 a5 22.e3 g7 23.bb1 e8 24.bg1 c8 25.e2 Portisch,L-Hort,V Hastings 1970 ½-½ (40) ] 11.d1 [ -0.27 Houdini 4 Pro x64 B: 11.0-0 df6 12.fe1 g4 13.d1 d7 14.h6 e8 15.e3 xf3 16.xf3 hf6 17.c2 a5 18.f1 b5 19.ed1 f8 20.g5 g7 21.d3 bxc4 22.xc4 h6 23.e3 b6 24.b3 0.56/22 ] 11...h8 [ 0.29 Houdini 4 Pro x64 B: 11...b5 12.cxb5 axb5 13.xb5 f5 14.h6 f7 15.exf5 xf5 16.c2 b6 17.h3 f8 18.e3 g7 19.c6 a5 20.d2 f7 21.de4 a6 22.g5 b8 23.g4 c4 -0.27/20 ] 12.h3 df6 [ 0.57 Houdini 4 Pro x64 B: 12...b5 13.cxb5 axb5 14.xb5 f5 15.h6 fxe4 16.d2 g7 17.dxe4 b7 18.a4 f6 19.d3 g8 20.xg7+ xg7 21.c2 b6 22.ad1 h6 23.g4 ab8 24.b1 f4 25.e2 0.04/20 ] 13.c2 d7 14.a4 c8 [ 0.91 Houdini 4 Pro x64 B: 14...g8 15.g4 g7 16.h6 e8 17.a3 f8 18.b1 e7 19.b3 b8 20.d2 ge8 21.e3 b6 22.g5 g7 23.f4 exf4 24.xf4 c7 25.f1 h5 26.gxh5 xh5 0.47/22 ] 15.g4 g7 16.h2 g8 17.f4 exf4 18.xf4 f6 19.f1 f7 20.e3 f8 21.h4 [ 1.37 Houdini 4 Pro x64 B: 21.b1 d8 22.a5 c7 23.h2 b8 24.f1 b6 25.axb6 xb6 26.a4 xa4 27.xa4 e7 28.c2 c8 29.h4 h5 30.h6 e8 31.f4 e7 32.g5 g8 33.a3 b8 34.a2 b4 1.81/23 ] 21...d8 22.h2 c7 23.h5 [ 0.64 Houdini 4 Pro x64 B: 23.ag1 e7 24.b3 c8 25.h5 g5 26.g3 a5 27.e2 e8 28.b2 e7 29.a1 b6 30.d2 h6 31.af1 d8 32.h2 g7 33.hf2 b4 34.f5 xf5 35.xf5 1.63/21 ] 23...g5 24.h6 [ 0.67 Houdini 4 Pro x64 B: 24.g3 h6 25.e2 e8 26.a5 e7 27.a3 d8 28.ha1 e7 29.b1 f7 30.d1 e5 31.h6 b8 32.xe5 xe5 33.g2 e7 34.f3 g8 35.f2 c8 36.b3 d8 37.f5 xf5 38.xf5 xa5 1.03/22 ] 24...e8 25.g3 e7 26.f5 g6 27.a5 e5 28.e2 [ 0.74 Houdini 4 Pro x64 B: 28.e2 d8 29.b1 b8 30.a2 b6 31.axb6 xb6 32.a1

c8 33.c2 fb7 34.a4 xf5 35.exf5 e7 36.xe5 xe5 37.e4 b7 38.c2 a5 39.a3 g8 40.e3 b4 41.a2 a4 1.15/21 ] 28...xf5 29.exf5 e7 30.e1 d8 31.e4 e7 32.g2 b6 33.c3 [ 0.56 Houdini 4 Pro x64 B: 33.axb6 xb6 34.c3 a5 35.b1 a4 36.a3 ea7 37.h3 e7 38.e3 d8 39.g3 g8 40.a2 b6 41.h3 h8 42.f1 b7 43.a3 a5 44.xe5 xe5 45.c3 1.30/20 ] 33...b5 34.cxb5 [ 0.24 Houdini 4 Pro x64 B: 34.b3 b4 35.xe5 xe5 36.a4 xa5 37.ha1 b6 38.xa6 b8 39.b2 c7 40.6a4 f8 41.d3 be8 42.e1 c8 43.d2 d8 44.h2 d7 45.aa1 d8 46.h1 de8 47.g2 d8 48.h3 de8 49.h2 d8 50.h1 0.76/22 ] 34...axb5 35.xb5 xa5 36.c6 aa7 37.xe5 xe5 38.a4 c7 39.ha1 a6 40.d2 b4+ 41.xb4 cxb4 42.c4 b3+ 43.xb3 [ -1.47 Houdini 4 Pro x64 B: 43.d3 e1 44.f2 xa1 45.xa7 c7 46.a8+ d8 47.a7 c7 -0.22/26 ] 43...ee7 44.g3 [ -9.08 Houdini 4 Pro x64 B: 44.c2 b4 45.c1 f8 46.h1 b8 47.h3 e1 48.h1 aa1 49.xe1 xe1 50.f3 e7 51.h3 g8 52.d3 c5 53.a4 b4 54.c6 f7 55.f1 e4 56.b5 f4 -1.27/22 ] 44...b8+ 0-1

Caruana,Fabiano Nakamura,Hikaru Zurich CC Rapid 2014 (1) [Houdini 4]

A62 2781 2776 04.02.2014

1.d4 f6 2.c4 c5 3.d5 g6 4.c3 g7 5.f3 0-0 6.g3 [ -0.04 Houdini 4 Pro x64 B: 6.e4 d6 7.e2 g4 8.0-0 bd7 9.h3 xf3 10.xf3 a6 11.e2 e8 12.d3 c7 13.e3 e5 14.f4 xc3 15.xc3 ef6 16.d3 b5 17.ad1 b6 18.b3 a5 19.c2 b4 0.47/22 ] 6...e6 7.g2 exd5 8.cxd5 d6 9.0-0 e8 10.f4 a6 11.a4 h6 12.c1 [ RR 12.e1 f5 13.c1 g5 14.d2 bd7 15.h4 g4 16.h2 h7 17.f1 e5 18.f4 g6 19.e3 h5 20.a5 c7 21.a4 g8 22.d2 fd7 23.a2 b5 24.axb6 xb6 25.e4 xe4 26.xe4 g6 Caruana,F (2757)-Kramnik,V (2810) Zuerich 2013 ½-½ (53) ] [ RR 12.h3 b6 13.e1 a7 14.c1 g5 15.d2 f5 16.h4 g4 17.h2 h7 18.e4 g6 19.d1 h5 20.f4 ae7 21.f1 b5 22.axb5 axb5 23.xb5 xe4 24.xe4 xe4 25.xe4 xe4 26.a4 xa4 Michalik,P (2577)-Rodshtein,M (2683) Groningen 2013 1-0 (41) ] 12...h7 13.e1N [ RR 13.h3 h5 14.d2 d7 15.e4 b8 16.a5 b5 17.axb6 xb6 18.a4 b5 19.c3 xc3 20.bxc3 b7 21.c2 hf6 22.fb1 a5 23.b6 xb6 24.xb6 xb6 25.d2 a7 26.b3 ae7 27.a5 xe4 Moiseenko,A (2632)-Bluvshtein,M (2548) Edmonton 2008 1-0 (35) ] 13...f5 14.h4 c8 15.c2 h5 16.d2 d7 17.f5 f8 18.e3 b8 19.a5 b5 20.axb6 xb6 21.a4 xa4 22.xa4 g7 [ 0.93 Houdini 4 Pro x64 B: 22...f5 23.b4 cxb4 24.xb4 xb4 25.xb4 d7 26.c1 f6 27.c4 b5 28.e3 e4 29.a3 d7 30.xe4 xe4 31.c3 e8 32.b2 a5 33.d3 b4 34.d4 b7 35.c4 a5 36.b1 f7 37.g2 0.45/20 ] 23.e4 e7 [ 1.26 Houdini 4 Pro x64 B: 23...h5 24.f3 f6 25.c4 g4 26.f4 h5 27.e4 f6 28.e2 e5 29.xe5 fxe5 30.e3 g7 31.xa6 d7 32.a3 b6 33.b3 b4 34.ea1 a8 35.d2 d4 0.60/20 ] 24.a5 [ 0.73 Houdini 4 Pro x64 B: 24.c4 g5 25.e3 f6 26.d3 f5 27.ea1 e7 28.c3

xc3 29.bxc3 f6 30.e4 e7 31.e3 h5 32.xa6 d7 33.a5 h4 34.d3 c8 35.a8 b6 36.xb8 xb8 1.26/20 ] 24...d7 25.c3 d8 26.c4 d7 27.a3 b5 28.a5 d7 29.c6 [ 0.85 Houdini 4 Pro x64 B: 29.g2 h5 30.f3 g7 31.g2 h5 32.c6 b7 33.xe7 xe7 34.e4 f6 35.d2 f8 36.e3 d7 37.d2 g8 38.h6 f7 39.d1 e8 1.23/20 ] 29...bc8 30.h4 f8 31.g2 [ 0.55 Houdini 4 Pro x64 B: 31.h2 f5 32.f3 f7 33.b4 cxb4 34.xb4 c7 35.a5 cc8 36.c3 h5 37.e3 c7 38.c1 f6 39.xf6 xf6 40.e2 xe2 41.xe2 f4 42.c4 fxg3+ 43.fxg3 f7 44.d2 g7 45.f4 g8 46.xa6 b7 47.h3 0.99/21 ] 31...h5 [ 1.30 Houdini 4 Pro x64 B: 31...f5 32.d2 e7 33.a5 h5 34.b3 h6 35.c2 f5 36.e3 g7 37.c4 xc3 38.xc3 e7 39.h3 cd8 40.aa1 g8 41.c2 h6 42.g2 b8 43.e4 ge8 44.e5 xc4 45.xc4 0.55/21 ] 32.h2 g7 33.h3 f5 [ 2.42 Houdini 4 Pro x64 B: 33...b7 34.xc8 xc8 35.xg7 xg7 36.c3+ g8 37.e4 xc6 38.dxc6 xc6 39.b3 c8 40.a1 h7 41.d1 g7 42.e5 f5 43.exd6 xd6 44.f3 f5 45.f4 c7 46.b6 e7 47.h5 g5 48.f3 d4 49.d3+ f5 50.xa6 1.66/22 ] 34.e4 h8 [ 3.47 Houdini 4 Pro x64 B: 34...xc3 35.exf5 g7 36.fxg6+ h8 37.xe8+ xe8 38.xc3 f8 39.d2 g7 40.e3 xe3 41.xe3 f6 42.e7 d3 43.xd3 xe7 44.e6 b7 45.b3 b5 46.e3 e8 47.f4 f8 48.f7 e7 49.b4 cxb4 50.xb4 e2 51.g2 e5 52.e6 e4+ 53.xe4 xe4 54.f7 f6 55.f3 a5 56.f4 a4 57.f5 2.75/20 ] 35.exf5 xe1 36.xe1 f6 [ 5.14 Houdini 4 Pro x64 B: 36...b7 37.fxg6 e8 38.c3 xc3 39.bxc3 f6 40.a5 c7 41.c4 d7 42.xd7 xd7 43.c6 a8 44.g2 g7 45.b3 h5 46.b1 c8 47.b6 c7 48.b8 c8 49.b3 h6 50.b6 g7 51.f3 c7 52.b8 c8 53.b7 c7 54.b6 e8 4.27/20 ] 37.fxg6 g4+ 38.g1 e8 [ 8.02 Houdini 4 Pro x64 B: 38...e8 39.d2 h5 40.f3 xc6 41.dxc6 xc6 42.f5 e4 43.xh5+ g8 44.xe4 xe4 45.f4 f6 46.f5 b4 47.xd6 e4 48.e5 b6 49.g2 xe5 50.xe5 f6 51.h5 g7 52.xc5 xb2 53.f3 e8 54.g2 b5 55.c8 e5 56.g4 e6 57.g3 e7 58.f4 c7 59.f5 e6 60.d5 d4+ 61.f4 5.34/22 ] 39.c3 xc6 40.dxc6 h5 [ 14.13 Houdini 4 Pro x64 B: 40...xc6 41.xg4 d5 42.f3 xg6 43.xg6 xg6 44.xd5 d6 45.c4 xc3 46.bxc3 d2 47.g2 a5 48.xa5 c2 49.a3 g7 50.d3 b2 51.a5 c4 52.xc4 d2 53.a7+ f6 54.a2 d8 55.a6+ g7 56.c6 f8 57.d3 h8 58.e4 f7 59.c4 e7 60.f3 d7 61.e3 h5 62.c5 h6 63.b5 h8 64.d5+ c8 65.g6 8.88/22 ] 41.xg4 hxg4 42.f5 xc3 43.xc3 e1+ [ #16 Houdini 4 Pro x64 B: 43...c7 44.e3 d8 45.h5+ g8 46.g7 xg7 47.e6 f6 48.xf6 xf6 49.xg4 c4 50.xc4 a5 51.h5 e7 52.g2 a4 53.h6 c8 54.h7 a3 55.e4+ f6 56.bxa3 d5 57.f4+ g6 58.g4+ xh7 59.xc8 g7 60.c7 f7 61.d7+ f6 62.c8 d4 63.xd4+ f7 64.cc4+ e8 65.e6+ f8 66.df6# 33.19/25 ] 44.h2 1-0

Gelfand,Boris Carlsen,Magnus Zurich CC Rapid 2014 (1) [Ramirez Alejandro,Houdini 4]

A58 2761 2872 04.02.2014

1.d4 f6 2.c4 c5 3.d5 b5 The Benko Gambit. Recommended as a dangerous weapon in rapids and in must-win situations due to the fast and long lasting initiative granted by the pawn.

4.cxb5 a6 5.bxa6 g6 [ 0.56 Houdini 4 Pro x64 B: 5...e6 6.a7 xa7 7.e4 xe4 8.dxe6 dxe6 9.xd8+ xd8 10.d3 b7 11.f3 a6 12.a3 b4 13.b1 d6 14.0-0 xf3 15.gxf3 d5 16.d1 c7 17.d2 e7 18.c1 c6 19.d3 b8 -0.04/20 ] 6.c3 g7 Not supposed to be a good way of continuing the Benko. [ 6...xa6 is by far the most common move. ] [ RR 6...xa6 7.g3 d6 8.g2 bd7 9.f3 g7 10.b1 0-0 11.0-0 a5 12.d2 fb8 13.c2 e8 14.fe1 c7 15.a4 b6 16.b3 xc3 17.xc3 xd5 18.e5 xe5 19.xd5 b7 20.xb7 xb7 21.xe5 Kramnik,V (2807)-Topalov,V (2743) Wijk aan Zee 2003 1-0 (57) ] [ RR 6...xa6 7.g3 d6 8.g2 g7 9.f3 bd7 10.b1 0-0 11.0-0 a5 12.d2 b7 13.e1 b6 14.c2 a7 15.e3 fd7 16.b3 a3 17.c2 a6 18.fc1 b7 19.d1 fc8 20.h4 ab8 21.h3 Meier,G (2655)-Markowski,T (2567) Legnica 2013 1-0 (45) ] 7.e4 0-0 8.f3 [ 8.e5?! e8 9.f3 d6 probably gives Black enough counterplay against White's overxposed center. ] 8...a5N [ RR 8...d6 9.e2 xa6 10.0-0 b6 11.h3 bd7 12.e1 e8 13.xa6 xa6 14.e2 c7 15.f4 b4 16.c1 b8 17.a3 c4 18.d2 ab6 19.c2 xc3 20.xc3 a2 21.c2 f6 22.c1 b3 23.h2 Kaidanov,G (2586)-Alburt,L (2550) Rockville 2012 1-0 (33) ] 9.d3? A blunder, so soon! [ 9.d2 9...xd5 -0.33 xa6 10.xa6 ( 10.e2!? d6 11.0-0 bd7 12.a4 ) 10...xa6 was eventually drawn in Dragun-Dubov, just a couple of months ago in the European blitz championship in Warsaw. ] [ -0.33 Houdini 4 Pro x64 B: 9.d2 d6 10.d3 xa6 11.0-0 bd7 12.xa6 xa6 13.h3 b6 14.a4 fd7 15.c2 fb8 16.g5 xc3 17.bxc3 f6 18.c1 c4 19.e2 g7 20.d2 de5 21.e1 b7 22.xc4 xc4 0.29/21 ] 9...xd5! Already White's position is bad. 10.exd5 xc3+ 11.bxc3? [ 11.d2 11...xc3+ -2.02 xd2+ 12.xd2 xd2+ 13.xd2 xa6 leaves White in an inferior position but at least material remains equal. ] [ -2.02 Houdini 4 Pro x64 B: 11.d2 xa6 12.xa6 xd2+ 13.xd2 xa6 14.c3 e8 15.xc5 d6 16.a3 xa3 17.bxa3 d7 18.b1 a5 19.0-0 f6 20.b7 xd5 21.b2 c8 22.c1 xc1+ 23.xc1 f6 24.g3 c5 25.b2 f7 26.g2 c2 27.a4 -0.37/20 ] 11...xc3+ The tactical justification of Black's play is that White cannot defend the rook on a1, cover the check and keep the bishop on d3 defended all at the same time. 12.d2 [ 12.d2 12...xa1 -1.25 xd3-+ is hopeless. ] 12...xa1 13.0-0 xa6 White is trying to create an attack on the kingside exploiting the missing bishop on g7, but tactics dont work out in his favor. 14.b2 [ 14.a3 g7 15.xc5-+ is insufficient compensation. ] 14...xa2 15.a1 [ 15.h6 15...b3 -2.01 xb2 16.g5 g7 simply does not work. ] [ -2.01 Houdini 4 Pro x64 B: 15.c3 f6 16.a1 xd3 17.xa2 xa2 18.d6 e6 19.c1 c4 20.h6 f7 21.e1 c6 22.h3 a4 23.xd3 cxd3 24.xd3 h4 25.e3 h8 26.f4 g5 27.g3 d4 28.f4 g7 29.fxg5 xg5 30.b3 b4 31.c3 g7 32.h2 gb5 33.h4 e5 34.e1 b3 35.c7 b7 36.d8 c6 37.e8 b2 38.h5 e5 39.c3 -1.61/22 ] 15...b3 16.e4 d6 no threat, so Black develops. 17.b1 f6 18.xf6 [ -4.62 Houdini 4 Pro x64 B: 18.h4 c4 19.e1 d7 20.h5 f7 21.hxg6 hxg6 22.xg6 g7 23.e4 c8 24.e3 a2 25.d2 b5 26.c3 e5 27.b1 d7 28.b8 a3 29.b1 a4 30.d2 g4 31.f4 c4 32.xc4 xc4 33.f3 -1.81/21 ] 18...c4! Just in time the Black queen attacks the e4 bishop and the f6 bishop is already hanging. 19.b2 [ -6.89 Houdini 4 Pro x64 B: 19.xe7 xe4 20.e1 d3 21.xf8 xd2 22.xd2 xf8 23.e4 b7 24.xd6 xd5 25.b5 c6 26.c7 d8 27.xd5 xd5 28.f1 f7 29.e3 f6 30.h3 h5 31.c3 d4 32.f4 f5 33.g3 b5 34.c1 e4 35.e2 d4+ 36.f2 -4.81/21 ]

19...xe4 20.e1 [ 20.h6 20...d3 -7.13 xb1+ is a problem. ] 20...d3 21.xd3 [ 21.h6 f7 22.g5 ( -18.44 Houdini 4 Pro x64 B: 22.c1 xf3 23.gxf3 xf3 24.g5 b7 25.xe7 d1+ 26.g2 xd5+ 27.f3 xf3+ 28.g1 h1+ 29.f2 xh2+ 30.e3 h3+ 31.d2 g2+ 32.xg2 xg2 33.g7+ f8 34.xh7 d5 35.c7 c6 36.d7 d8 37.h7 b8 38.c3 f7 39.f6 b3 40.h8+ g8 41.h4 f3 42.a1 f7 43.g4 b4 44.g1 d3+ 45.e2 c4 46.b1 d5 -7.89/21 ) 22...d2 and White's everything is hanging. ] 21...xd3 22.xe7 xf3 [ 22...f5 23.gxf3 -4.50 was fine too. ] [ -4.50 Houdini 4 Pro x64 B: 22...f5 23.g7+ f8 24.xh7 xd5 25.h4 h5 26.c7 f5 27.g3 d7 28.g5 b8 29.c3 d5 30.d2 d4 31.f4 d3 32.f3 e7 33.c6 b6 34.c8 e6 35.e4 c4 36.g4 hb5 37.f2 b2+ 38.e3 d5 39.c3 e6+ 40.d4 -5.91/23 ] 23.gxf3 a6 A solid extra piece and checks will soon run out. A demolition. 0-1

Aronian,Levon Carlsen,Magnus Zurich CC Rapid 2014 (2) [Houdini 4]

E06 2826 2872 04.02.2014

1.f3 f6 2.c4 e6 3.g3 d5 4.g2 e7 5.d4 0-0 6.c2 [ -0.06 Houdini 4 Pro x64 B: 6.0-0 c6 7.b3 a5 8.c3 a4 9.xa4 dxc4 10.b2 cxb3 11.axb3 a5 12.c2 b4 13.b1 b6 14.e5 h6 15.d1 fd5 16.c3 xa1 17.xa1 b7 18.b2 h8 19.b5 0.30/21 ] 6...c5 7.0-0 cxd4 8.xd4 e5 9.f5 d4 10.xe7+ xe7 11.g5 h6 12.xf6 xf6 13.d2 f5N [ RR 13...c6 14.c5 e7 15.ac1 a5 16.e4 b4 17.b1 f5 18.a3 c6 19.b4 axb4 20.axb4 e6 21.b5 e7 22.fe1 fd8 23.b4 d5 24.b3 xe4 25.xe4 ac8 26.e3 c3 27.xe6 fxe6 28.exd4 Giri,A (2727)-Leko,P (2744) Zug 2013 ½-½ (38) ] [ RR 13...c6 14.c5 f5 15.b3 e7 16.e4 xe4 17.xe4 h8 18.c4 f5 19.xc6 ½-½ (19) Tkachiev,V (2650)-Cornette,M (2578) Nimes 2009 ] [ RR 13...c6 14.a3 a5 15.c5 e7 16.e4 f5 17.c4 e6 18.b5 f5 19.d6 ab8 20.b4 axb4 21.axb4 e4 22.a4 e5 23.f3 d3 24.exd3 exf3 25.xf3 xf3+ 26.xf3 d5 27.d1 f4 28.gxf4 Yu,Y (2646)-Hou,Y (2612) Shenzhen 2011 1-0 (62) ] 14.b3 d7 15.a3 b6 16.fc1 fc8 17.b4 a5 18.c5 a6 [ 1.61 Houdini 4 Pro x64 B: 18...b5 19.c4 axb4 20.f3 e4 21.xf5 xc5 22.xe4 xc4 23.xc4 xc4 24.xb7 d8 25.d5 xd5 26.xd5 f6 27.f3 g5 28.d1 g7 29.h3 d6 30.g2 h5 31.g4 hxg4 32.hxg4 d5 33.xd5 xd5 34.f3 f6 35.e4 e5+ 36.d3 c5 37.b1 e5 38.xb4 c3+ 39.d2 a3 40.b2 f4 0.27/22 ] 19.c4 e6 [ 2.35 Houdini 4 Pro x64 B: 19...f6 20.xb7 axb4 21.f3 xc5 22.xa8 e4 23.xe4 xe4 24.g4 g6 25.xf6 gxf6 26.b6 xc1+ 27.xc1 c3 28.f1 g7 29.e1 xa2 30.d1 b3 31.c4 b4 32.d2 c2 33.a1 d5 34.a6 f5 35.d6 f6 36.xd4 xg4 37.a3 xf2 38.xc2 bxc2 39.xc2 g6 40.d7 g4 41.h3 f2 42.h4 e4 43.d5 g3 44.d3 e4 45.d4 1.68/20 ] 20.d6 axb4 21.xa6 bxa6 22.xc8 [ 1.66 Houdini 4 Pro x64 B: 22.f4 exf4 23.gxf4 g6 24.xa8 xa8 25.c6 b6 26.d1 c8 27.xd4 xd6 28.xd6 f8 29.c7 e7 30.d2 c8 31.c1 a5 32.f2 a4 33.e4 b3 34.axb3 axb3 35.e3 f5 36.g2 g5 37.fxg5 hxg5 38.xg5 b2 39.b1 xc7 40.exf5 f6 41.h4 xf5 42.xb2 c3+ 43.d4 d3+ 44.c5 c3+ 45.b6 f3 46.g8 f7 47.h8 e6 48.c2 g7 49.d8 g6 50.g2+ f5 2.24/22 ]

22...xc8 23.c6 b6 24.ab1 a5 25.a3 b3 26.c7 c4 27.b7 xc7 28.xb3 xb7 29.xc4 xc4 30.xb7 xa3 31.g2 c4 32.g4 [ 0.99 Houdini 4 Pro x64 B: 32.b5 f6 33.c5 b2 34.xa5 f7 35.a7+ g6 36.f4 d3 37.exd3 xd3 38.f3 exf4 39.gxf4 e1+ 40.e3 g2+ 41.e4 h4 42.b7 f5 43.d7 h4 44.a7 f5 45.a6 h5 46.c6 h4 47.c7 h3 48.d7 1.35/24 ] 32...d6 33.a7 f6 [ 1.49 Houdini 4 Pro x64 B: 33...c4 34.c7 b2 35.c5 f6 36.xa5 h7 37.a7 d3 38.exd3 xd3 39.f3 g6 40.c7 f4 41.e4 h5 42.f3 h4 43.a7 e2 44.d7 f4 45.e7 e2 46.b7 f4 47.d7 e6 48.e7 c5+ 49.e3 h3 50.a7 e6 51.a6 f7 52.a3 g5 53.a7+ g6 1.01/25 ] 34.xa5 e4 [ 2.25 Houdini 4 Pro x64 B: 34...f7 35.a7+ g8 36.h4 e4 37.e3 dxe3 38.fxe3 h7 39.h5 g8 40.f3 g5+ 41.f2 e4+ 42.e2 f8 43.c7 g8 44.d7 c5 45.d8+ f7 46.d5 e6 47.d7+ f8 48.a7 e4 49.a4 g5 50.a8+ f7 51.a7+ g8 52.f2 f8 53.g2 e6 54.g3 e8 55.a4 g5 56.a8+ f7 57.a7+ g8 58.f4 1.61/25 ] 35.h4 [ 1.65 Houdini 4 Pro x64 B: 35.f4 exf4 36.f3 c3 37.f5 f7 38.xf4 b5 39.f5 c7 40.e4 e6 41.b5 g5 42.b6 g7 43.xd4 h5 44.gxh5 xh5 45.e4 g6 46.b8 f4 47.b2 h3 48.b6 g4 49.e3 g5 50.b5+ g6 51.d5 2.25/25 ] 35...h5 [ 2.06 Houdini 4 Pro x64 B: 35...c3 36.f1 e4 37.h5 g5 38.e1 f8 39.a8+ f7 40.a7+ g8 41.f3 e6 42.d2 h7 43.e3 dxe3+ 44.xe3 g8 45.e7 f4 46.b7 h7 47.d7 e6 48.e7 c5 49.a7 e6 50.d7 g8 51.b7 d4 52.e4 h7 53.a7 b3 54.e3 d4 55.f4 c6 56.b7 d4 57.fxe5 fxe5 1.65/25 ] 36.gxh5 h7 37.a8 d6 [ 2.57 Houdini 4 Pro x64 B: 37...c5 38.f3 d3 39.e4 d2 40.d8 b3 41.e3 d4 42.xd2 f3+ 43.e3 xh4 44.e2 g2 45.f3 f4 46.g4 g6 47.hxg6+ xg6 48.d6 e2 49.d7 c3 50.f3 e2 51.d2 f4 52.d6 g2 53.c6 f4 54.a6 g2 55.a3 f7 56.a4 e3+ 57.h5 f5 58.a7+ e6 59.a6+ d7 2.09/25 ] 38.f3 f5 39.g4 h6+ 40.h3 f5 41.d8 h6 42.f4 exf4 43.xd4 f7 44.xf4 h6 45.f5 d6 [ 7.15 Houdini 4 Pro x64 B: 45...d8 46.d5 c6 47.d7 b4 48.g4 c6 49.f4 h7 50.c7 d4 51.c4 b5 52.c5 d6 53.d5 f7 54.f5 h6+ 55.e4 f7 56.d7 h6 57.f4 g8 58.c7 f8 59.e4 g8 60.b7 f8 61.d7 f7 62.b7 d8 3.74/25 ] 46.d5 c4 47.g3 e3 48.c5 f1+ [ 9.24 Houdini 4 Pro x64 B: 48...d1 49.f3 b2 50.g4 h7 51.c8 a4 52.f5 b6 53.d8 c4 54.h6 e3+ 55.e4 g4 56.hxg7 xg7 57.f4 e5 58.f5 c4 59.d7+ h6 60.xf6 e3 61.d8 g4+ 62.f7 e5+ 63.e6 g4 64.e4 h7 65.e5 g7 66.d4 e3 67.d3 c4 68.g3+ h6 69.g5 d2 70.f6 h7 71.g7+ h8 72.e6 e4+ 73.g6 f6 74.e7 e8 75.f7 6.97/26 ] 49.f4 d2 50.e3 b3 51.c3 a5 [ 10.63 Houdini 4 Pro x64 B: 51...d2 52.c2 b1 53.g4 h7 54.f5 a3 55.c8 b5 56.d8 c3 57.h6 g6+ 58.xf6 e4+ 59.e5 f2 60.f8 g4+ 61.f4 f2 62.e4 xh6 63.e5 g7 64.f6 d3+ 65.e4 b4 66.f4 c6 67.e6 g5 68.f7+ g6 69.c7 gxh4 70.xc6 h3 71.c3 f6 72.xh3 xe6 73.h6+ e7 74.d5 f7 75.e5 g7 76.d6 f7 77.f6+ e7 78.d6 f7 79.f6+ 5.89/24 ] 52.c8 h7 53.f5 1-0

Caruana,Fabiano Gelfand,Boris Zurich CC Rapid 2014 (2) [Houdini 4]

B52 2781 2761 04.02.2014

1.f3 c5 2.e4 d6 3.b5+ d7 4.xd7+ xd7 5.0-0 c6 6.c4 f6 7.c3 g6 8.d4 cxd4 9.xd4 g7 10.de2 e6 11.d5 xe4 12.c7+ d7 13.xa8 xc4 14.b6+ [ RR 14.c3 xa8 15.g5 e6 16.e1 d5 17.xd5 xd5 18.xd5 exd5 19.ad1 h6 20.c1 d4 21.d3 c8 22.b3 b6 23.f1 e5 24.a3 a5 25.b4 c2 26.bxa5 bxa5 27.xa5 d3 28.a7+ c6 Naiditsch,A (2716)-Anand,V (2780) Baden-Baden 2013 0-1 (49) ] 14...axb6 15.b3N [ RR 15.c3 e6 16.e3 d5 17.xd5 xd5 18.e2 b5 19.ad1 c4 20.d2 b4 21.d3 d5 22.c1 a4 23.fd1 b4 24.c5 xb2 25.b1 c3 26.f3 f5 27.f4 e5 28.h4 c2 29.xb4 e4 Rublevsky,S (2670)-Motylev,A (2574) Novi Sad 2000 0-1 (69) ] [ RR 15.c3 b5 16.e3 a8 17.c1 e8 18.a3 b4 19.b3 h4 20.b5 d7 21.c5 h5 22.xh5 xh5 23.xb4 f4 24.c4 d5 25.d2 f5 26.a4 h6 27.d1 e6 28.h4 e5 29.c2 c6 Rublevsky,S (2662)-Van Wely,L (2646) Frankfurt 2000 ½-½ (60) ] [ RR 15.c3 b5 16.e3 a8 17.c1 e8 18.g5 f8 19.a3 b4 20.xf6 xf6 21.d5 d4 22.xf6 xf6 23.axb4 xb2 24.b1 f6 25.d3 f5 26.c3 f6 27.b5 d8 28.fe1 e6 29.e3 f7 Leitao,R (2587)-Georgiev,K (2676) Poikovsky 2001 ½-½ (41) ] 15...d5 16.e3 xd1 17.axd1 b5 18.a4 b4 19.f3 e6 20.f4 e7 21.fe1 g5 22.e2 h6 23.d4 d7 24.b5 d5 25.f2 e5 26.g3 f4 27.xf4 gxf4 28.e4 f5 29.c4 g8 [ 0.19 Houdini 4 Pro x64 B: 29...a5 30.xd5 xc4 31.d4 e3 32.xd6 e5 33.d2 e7 34.xb7 c8 35.g3 c3 36.a5 e4 37.gxf4 d3 38.b2 exf3 39.c6+ e6 40.e5 d4 41.xf3 xf4 42.f2 g4+ 43.h1 d5 44.a5 g6 45.e1 a6 46.g2 xg2 47.xg2 e4 48.g3 xa5 49.f4+ e3 50.xb4 a1 51.h4 f4 52.b6 f3 53.e6+ f2 54.xh6 a3 55.b6 g2 -0.32/24 ] 30.xd5 exd5 31.xf4 e6 32.h4 g6 33.d4+ e5 34.c2 d4 35.e1 d5 36.d3 f6 37.f2 e5 38.e2 xd3 39.xd3 c5 40.xd4 d5 41.f4 g6 42.g3 e6 [ 0.43 Houdini 4 Pro x64 B: 42...a6 43.xf5 b5 44.axb5 a3 45.c2 a2+ 46.d1 a1+ 47.d2 a2+ 48.e1 a1+ 49.f2 a2+ 50.f1 a1+ 51.e2 a2+ 52.e3 b2 53.b6 xb3+ 54.e2 b2+ 55.d3 xb6 56.xd5 xh2 57.c4 h3 58.xb4 xg3 59.f4 h5 60.b5+ c6 61.c5+ d6 62.xh5 0.03/25 ] 43.xf5 e1 44.f8 [ 0.02 Houdini 4 Pro x64 B: 44.f7 f1 45.a5 d1+ 46.e3 b1 47.c7+ b5 48.xb7+ xa5 49.d4 xb3 50.f4 a4 51.f5 f3 52.xd5 xf5+ 53.c4 a3 54.xb4 f2 55.b3+ a2 56.h4 c2+ 57.c3 g2 58.e3 b2 59.d3 g1 60.e4 h5 61.e5 c2 0.44/24 ] 44...d1+ 45.c2 f1 46.d3 d1+ 47.e3 e1+ 48.d2 b1 49.c2 f1 50.d3 d1+ 51.c2 f1 ½-½

Nakamura,Hikaru Anand,Viswanathan Zurich CC Rapid 2014 (2) [Ramirez Alejandro,Houdini 4]

A01 2776 2773 04.02.2014

1.b3 Nakamura seems to like this in rapid games, he used it with great success to win the London rapids last year, and in this tournament he beat both Anand and Aronian with it. [ -0.14 Houdini 4 Pro x64 B: 1.d4 d5 2.f4 f5 3.e3 e6 4.d3 xd3 5.xd3 f6 6.f3 d6 7.0-0 0-0 8.c3 c6 9.a3 h6 10.h3 e7 11.ad1 ad8 12.e5 xe5 13.xe5

xe5 14.dxe5 0.25/22 ] 1...e5 2.b2 d6 a solid but somewhat passive set-up. 3.e3 f6 4.d4 forcing some lines open, but not without giving Black something in return. In this case, tempi. exd4 5.xd4 c6 6.d2N [ RR 6.b5 d7 7.a4 e7 8.f3 a6 9.xc6 bxc6 10.c3 c5 11.f4 f5 12.xf5 xf5 13.0-0-0 0-0-0 ½-½ (13) Mariotti,S (2495)-Ribli,Z (2520) Ljubljana 1975 ] 6...e7 [ 6...g6!? allows Black to fight for the diagonal, and is worth considering. ] 7.c3 0-0 8.0-0-0 opposite side castling indicates a fearsome battle ahead! a6 9.f3 both players prepare to pawn storm the opponent b5 10.g4 b4 11.ce2 a5 [ 0.53 Houdini 4 Pro x64 B: 11...b7 12.g2 d7 13.f4 c8 14.g5 e8 15.g3 f8 16.f3 a5 17.h4 c5 18.f5 a4 19.hg1 axb3 20.axb3 e7 21.f6 d5 22.fxg7 xg7 23.xg7 xg7 24.d4+ g8 25.h5 e6 0.12/20 ] 12.g3 [ 0.05 Houdini 4 Pro x64 B: 12.g5 d7 13.f4 b7 14.g2 c8 15.h4 a4 16.h2 c5 17.d4 xd4 18.xd4 f6 19.xb4 xg2 20.xg2 e6 21.d4 e4 22.e2 c6 23.c4 xc4 24.bxc4 a3 25.xf6 xf6 26.gxf6 xf6 27.d4 e8 0.53/21 ] 12...e8?? A strategically strange move and a tactical blunder! [ 12...d7 13.d5 2.20 13.d5?! ( 13.f5?! f6 and Black has good chances in this position.; -0.44 Houdini 4 Pro x64 B: 13.f4 f6 14.g2 b7 15.1e2 a4 16.d4 axb3 17.axb3 xd4 18.exd4 xg2 19.xg2 h6 20.he1 h4 21.e2 xg3 22.xg3 f6 23.de1 d5 24.g5 hxg5 25.fxg5 a2 26.h4 -0.07/20 ) 13...b7 14.b5 b6 ] [ 2.20 Houdini 4 Pro x64 B: 12...d7 13.f4 f6 14.g2 b7 15.1e2 b8 16.xf6 xf6 17.g5 d7 18.b2 a4 19.d4 xd4 20.exd4 xg2 21.xg2 b6 22.he1 e8 23.c6 a3+ 24.c1 d7 25.xd7 xd7 26.f5 f8 27.e3 b6 28.b1 g8 29.d5 g6 0.05/21 ] 13.d5! Nakamura will never let one of these opportunities past him. b7 14.b5 suddenly its impossible to defend the knight on c6... e5 giving the piece up is hopeless, but nothing else helped [ 14...d7 permanently pins his own piece. This can be easily exploited by preparing Nf5. 15.g5! a4 16.h4! Black is paralyzed and will surely die to the pawn storm. ] [ 2.72 Houdini 4 Pro x64 B: 14...d7 15.g5 a6 16.xa6 xa6 17.b1 a4 18.h4 d8 19.d2 c8 20.e4 f6 21.1e2 a6 22.f5 a3 23.a1 e5 24.xe5 fxe5 25.d5+ f7 26.eg3 xd5 27.xd5 g6 28.a5 b7 29.a7 c8 30.a8 2.26/21 ] 15.xb7 b8 16.d5 f6 Black gets back some of his material but not nearly enough. 17.xe5 dxe5 18.xd8 fxd8 19.d3 White's position is just winning. Two pieces are far more powerful than the rook here. c5 20.xe5 xe3+ 21.b1 d5 [ 2.69 Houdini 4 Pro x64 B: 21...e8 22.f5 c5 23.f4 f6 24.b2 d6 25.e7+ h8 26.c6 e8 27.f3 a8 28.g5 fxg5 29.xg5 h6 30.f3 e4 31.f1 e6 32.ce5 c3+ 33.xc3 bxc3 34.c4 f6 35.d7 2.23/21 ] 22.f5 d2 23.xg7 f4 24.e2 xd3 25.cxd3 xd3 26.c2 0/2 for Anand, and not in a good way either. 1-0

Anand,Viswanathan Caruana,Fabiano Zurich CC Rapid 2014 (3) [Houdini 4]

B47 2773 2781 04.02.2014

1.e4 c5 2.f3 e6 3.d4 cxd4 4.xd4 a6 5.e2 f6 6.c3 c7 7.0-0 c5 8.g5 c6 9.xc6 bxc6 10.h1 d5 11.d3 e7 12.f4 b7N [ 0.43 Houdini 4 Pro x64 B: 12...d4 13.e2 c5 14.xf6 xf6 15.e5 e7 16.c3 dxc3 17.xc3 0-0 18.c2 g6 19.ad1 b8 20.b3 d8 21.e4 d7 22.f3 h6 23.d3 c4

24.e4 bc8 25.bxc4 xc4 0.00/21 ] [ RR 12...h6 13.h4 dxe4 14.xe4 xe4 15.xe7 g3+ 16.hxg3 xe7 17.f3 c5 18.b4 b6 19.f5 exf5 20.ae1+ e6 21.g4 f4 22.f5 0-0 23.xf4 xa2 24.d3 ad8 25.e4 g6 26.f6 b7 27.xc6 Tseshkovsky,V-Anikaev,Y Soviet Union 1967 1-0 (37) ] 13.e1 [ 0.03 Houdini 4 Pro x64 B: 13.e5 g8 14.g4 g6 15.b4 h5 16.e2 h6 17.a4 xb4 18.ab1 e7 19.xe7 xe7 20.f2 0-0 21.h3 f5 22.xf5 exf5 23.b6 ab8 24.c5 a8 25.xb8 xb8 26.xb8+ g7 0.43/20 ] 13...h6 14.h4 0-0 15.e5 e8 16.xe7 xe7 17.e2 c5 18.c3 a5 19.g1 a6 20.xa6 xa6 21.c4 c7 22.b3 a4 23.f3 fa8 24.b1 axb3 25.axb3 a2 26.f2 d7 27.xa2 xa2 28.h3 a6 29.a1 xa1 30.xa1 b4 31.a8+ h7 32.f8 d3 33.f5 exf5 34.d6 a7 35.xd5 [ -0.61 Houdini 4 Pro x64 B: 35.e6 fxe6 36.cxd5 exd5 37.xd5 f2+ 38.g1 c4 39.bxc4 e4+ 40.h2 b8+ 41.e5 b3 42.f3 b8+ 43.e5 -0.05/23 ] 35...f4 36.d2 e6 37.h2 b7 38.d3 g6 39.g1 g7 40.f2 a8 41.c2 [ -1.12 Houdini 4 Pro x64 B: 41.b1 a5 42.b2 d8 43.b1 g5 44.a1 e4+ 45.g1 g8 46.h2 g5 47.b1 e7 48.g3 h7 49.g2 g7 50.d3 e6 51.c2 b6 52.b2 g6 53.c2 a5 54.b2 -0.46/24 ] 41...a1 42.d2 [ -1.47 Houdini 4 Pro x64 B: 42.h4 d4 43.d2 xf3 44.gxf3 xe5 45.f4 b8 46.c3+ g8 47.e3 d8 48.g3 d1 49.f2 g4 50.e8+ g7 51.e5+ h7 52.c7 xh4+ 53.f3 h3+ 54.f2 h2+ 55.f3 h1+ 56.f2 a1 57.xf7+ g7 58.d5 c7 59.f3 h5 60.g2 e7 61.f2 b7+ 62.h2 c6 63.g1 h6 64.b2 e8 65.h2 -1.04/25 ] 42...b1 43.c3 g8 44.e1 [ -2.09 Houdini 4 Pro x64 B: 44.h4 d1 45.b4 f4 46.bxc5 e2+ 47.g3 xg2 48.d2 f4+ 49.h2 xd2 50.xd2 xh4 51.c6 -1.14/22 ] 44...g5 45.c2 a1 46.d3 [ -5.28 Houdini 4 Pro x64 B: 46.e6 e4+ 47.e2 fxe6 48.d3 b2+ 49.c2 f6 50.f3 g5 51.d3 b2+ 52.e1 a1+ 53.e2 a2+ 54.e1 a5+ 55.f1 f7 56.g1 a1+ 57.h2 h1+ 58.xh1 f2+ 59.h2 xd3 60.g3 f6 61.h4 g4 -1.86/24 ] 46...e4+ 47.e3 [ -3.76 Houdini 4 Pro x64 B: 47.e2 g1 48.e1 f2+ 49.d1 d4+ 50.d3 g1+ 51.e1 g5 52.e6 fxe6 53.e2 f2+ 54.d1 d4+ 55.d3 e3 56.g3 g1+ 57.e1 xg3 58.g2 f2+ 59.e1 xh3+ 60.f1 f7 61.d2 f3+ 62.e1 g6 63.e2 c3+ 64.f1 e5 65.e3 xe3 66.xe3 g4 67.d5 e4 68.b4 cxb4 69.xb4 f4 70.e2 g3 -5.37/22 ] 47...g1+ 48.f3 h2 49.e1 xe5 50.e2 g3 51.d3 f2+ 52.d1 b2 53.c2 d4+ 54.e2 h5 55.d3 e5 [ -2.45 Houdini 4 Pro x64 B: 55...f2+ 56.d1 h4 57.f3 xg2 58.xh4 g1+ 59.c2 f2+ 60.b1 xh4 61.e3 f6 62.d3 e5 63.c2 f6 64.h4 xh4 65.b2 g5 66.b4 cxb4 67.d8+ g7 68.d4+ g6 69.b3 g4 70.c5 f6 71.xf6+ xf6 72.c6 g3 73.c7 -7.00/21 ] 56.f1 [ -5.72 Houdini 4 Pro x64 B: 56.e3 b2+ 57.f1 g7 58.f3 b1+ 59.e2 c2+ 60.f1 d1+ 61.e1 f6 62.h4 e6 63.g1 d2 64.xd2 xd2 65.f2 xb3 66.d3 d2 67.xc5+ e5 68.d7+ d4 69.g3 xc4 70.f4 e3 71.f3 d5 72.g3 e3 73.b8 g4 74.c6+ c5 75.a5 e5+ 76.f4 d5 77.b3 d3+ 78.g5 e5 79.d2 -2.45/24 ] 56...f4+ 57.e2 g7 [ -2.52 Houdini 4 Pro x64 B: 57...f2+ 58.d1 b2 59.c2 d4+ 60.d3 g1+ 61.e1 h4 62.b2 e3 63.b4 f2+ 64.c2 xe1 65.bxc5 e4 66.c6 f2+ 67.b3 b6+ 68.a2 a6+ 69.b1 xc6 70.d4 xc4 71.xc4 d2+ 72.c2 xc4 73.d3 a5 74.c3 g7 75.d4 f6 76.d5 b7 77.d4 d8 78.e3 e6 79.f3 c5 80.f2 e5 81.e2 e4 -6.40/21 ]

58.e3 e5 59.d3 h2 60.xc5 xg2+ 61.e1 g5 62.h4 [ -3.61 Houdini 4 Pro x64 B: 62.d7 f3+ 63.d1 xh3 64.c5 g4 65.c1 h4 66.c6 h3 67.c7 h2 68.c8 h1+ 69.b2 gg2+ 70.a3 a1+ 71.b4 g4+ 72.c4 a6 73.b6 e4 74.cxe4 fxe4 75.c3+ g8 76.d5 d6+ 77.c5 e5 78.e7+ g7 79.xe5+ xe5 80.c3 f6 81.d5+ e6 82.d4 f5 83.c7+ d7 84.d5 d6 -2.75/17 ] 62...f3+ 63.d1 g4 [ -1.88 Houdini 4 Pro x64 B: 63...f4 64.c3+ h7 65.c1 f1+ 66.b2 f2+ 67.b1 xh4 68.d3 f1+ 69.c1 f3 70.f6 f5 71.xf7+ h6 72.f8+ g5 73.d8+ g4 74.e8 h4 75.xg6+ f4 76.b6 f2 77.b8+ f3 78.a8+ g3 79.g8+ h2 80.g5 d1 81.f4+ g2 82.g5+ g3 -3.40/20 ] 64.c2 f4 65.e7 [ -3.52 Houdini 4 Pro x64 B: 65.f2 xh4 66.d4+ h7 67.e4 f5 68.c3 f3 69.d5 xd5 70.cxd5 g7 71.b4 f5 72.d6 e5 73.d4 f7 74.c3 xd6 75.e5 c4+ 76.xf4 f6 77.d5+ e6 78.c7+ d6 -2.36/19 ] 65...f5+ 66.c3 e5 67.g5 [ -4.93 Houdini 4 Pro x64 B: 67.d2 g4 68.d3 f3 69.d8 f2 70.d4+ h7 71.xf2 xf2 72.b4 e4+ 73.e3 g3 74.d5 f1 75.c5 f5+ 76.d2 f2+ 77.c3 g3+ 78.b2 g7 79.c4 xh4 80.d4+ h7 81.f6 f5 82.xf7+ h6 83.f8+ g5 84.d8+ g4 85.e8 g5 86.e2+ f3 87.c4+ f4 88.e2+ g3 89.d3+ e3 -3.07/21 ] 67...xg5 68.hxg5 h4 69.e4 g4 70.d4 [ -14.17 Houdini 4 Pro x64 B: 70.d2 h3 71.f1 f5 72.b4 f3 73.b5 h2 74.xh2 xh2 75.b6 f2 76.b7 f1 77.b8 c1+ 78.d3 a3+ 79.c2 g4 80.c7+ g8 81.d8+ f7 82.d5+ e7 83.b7+ f8 84.c6 b4 85.e6 c5 86.xg6 xc4+ 87.b2 d4+ 88.b3 e3 89.c6 f4 90.g6 d5+ 91.xd5 xd5 -2.81/16 ] 0-1

Carlsen,Magnus Nakamura,Hikaru Zurich CC Rapid 2014 (3) [Houdini 4]

B51 2872 2776 04.02.2014

1.e4 c5 2.f3 d6 3.b5+ d7 4.0-0 a6 5.d3 gf6 [ RR 5...e5 6.xe5 dxe5 7.a4 f6 8.b3 e6 9.b2 xb3 10.e2 c4 11.xc4 xc4 12.xc4 c8 13.b3 c7 14.d3 e6 15.d2 d7 16.c4 b6 17.h1 b8 18.c3 f6 19.g3 b5 20.axb5 Carlsen,M (2868)-Svidler,P (2769) Sandnes 2013 ½-½ (43) ] 6.e1 b5N [ RR 6...g6 7.c3 e5 8.e2 g7 9.d4 cxd4 10.cxd4 xf3+ 11.xf3 0-0 12.c3 d7 13.e3 b6 14.b3 e6 15.c1 c8 16.d2 a8 17.e2 d7 18.d5 xc1 19.xc1 b8 20.h4 c8 21.h5 Mamedov,R (2637)-Nepomniachtchi,I (2717) Khanty-Mansiysk 2013 0-1 (47) ] [ RR 6...g6 7.c3 e5 8.xe5 dxe5 9.f1 g7 10.a4 b6 11.a3 0-0 12.c4 c7 13.a5 b5 14.b6 b8 15.d3 b7 16.e3 fd8 17.f3 d7 18.e2 e6 19.f2 f8 20.xd7 xd7 21.h1 Zvjaginsev,V (2659)-Nepomniachtchi,I (2717) Khanty-Mansiysk 2013 0-1 (50) ] 7.c4 e5 [ 0.44 Houdini 4 Pro x64 B: 7...bxc4 8.xc4 e6 9.d4 cxd4 10.xd4 b7 11.c3 c8 12.b3 e7 13.e3 0-0 14.c1 c5 15.f3 fd7 16.c2 a5 17.cb5 e5 18.b3 d8 19.e2 c8 20.d2 0.08/21 ] 8.f1 xc4 9.a4 d7 10.d4 cxd4 11.xd4 e5 12.axb5 exd4 13.xc4 axb5 14.xa8 xa8 15.b3 e7 16.xd4 0-0 17.c3 b4 18.xb4 b8 19.c4 e6 20.d5 d8 21.h3 h6 22.f4 b7 23.c2 a5 24.d1 xd5 25.exd5 c8 26.b3 xb3 27.xb3 b8 28.c4 xb2 29.xd6 b6 30.e5 xf2 31.h2 f5 32.g3 h5

[ 0.94 Houdini 4 Pro x64 B: 32...e4 33.b8 g6 34.d6 c5 35.d4 f6 36.d7 xd7 37.xf7+ xf7 38.xd7+ g8 39.d6 c7 40.xc7 xc7 41.xg6+ h7 42.b6 h5 43.b5 g6 44.h4 c3 45.g5+ h6 46.g3 c2+ 47.h3 a2 48.d5 g6 49.d6+ g7 50.e6 f7 51.h6 a5 52.d6 a4 0.38/23 ] 33.d6 c5 34.e2 e4 35.d7 d8 36.b8 [ 0.11 Houdini 4 Pro x64 B: 36.e1 f6 37.f3 c4 38.b7 f8 39.a6 e4 40.f2 e5 41.g3 a5 42.b7 g5 43.f3 h4 44.d6+ g7 45.b4 a6 46.c5 g6 47.e2 a5 48.b4 a7 49.d3+ g7 50.f5 a8 51.c3 c7+ 52.g1 b6+ 0.67/20 ] 36...f6 [ 0.76 Houdini 4 Pro x64 B: 36...h4 37.a7 a5 38.e3 f8 39.f3 f5 40.xe4 fxe4 41.d4 a7 42.f2 c7+ 43.g3 hxg3+ 44.xg3 d8 45.f4 f7 46.g3 a3+ 47.g4 d3 48.e5 xd4 49.xd4 e7 50.f4 xd7 51.xe4 e6 52.a1 c7 53.b2 g5 54.d4 d6 55.c3 g3 0.11/22 ] 37.f3 h7 38.f4 g5 [ 0.80 Houdini 4 Pro x64 B: 38...g6 39.e3 e5 40.d2 f5 41.b4 g5 42.c6 e6 43.a1 d5 44.a5 c7 45.e1 d5 46.g3 f4 47.f2 e7 48.d4 e2 49.c5+ e6 0.41/21 ] 39.e3 b5 40.c6 [ 0.51 Houdini 4 Pro x64 B: 40.d4 g6 41.c6 b4 42.a1 e4 43.c1 f6 44.g3 b6 45.g2 g4 46.e5 a6 47.c2 f5 48.f4 a7 49.e3 a6 50.b5 d6 51.c8 gxh3+ 52.xh3 g4 53.f4 d5 54.xd8 xb5 1.12/22 ] 40...a5 [ 1.38 Houdini 4 Pro x64 B: 40...e5 41.c1 g7 42.d6 h4 43.b2 e6 44.xe6 fxe6 45.g1 f7 46.f2 e5 47.xe5 e6 48.xf6 xf6 49.f3 e7 50.g4 d6 51.b5 c7 52.f5 e7 53.e6 d8 54.d3 0.51/21 ] 41.d4 g6 42.h1 [ 0.46 Houdini 4 Pro x64 B: 42.b2 f5 43.d6 h7 44.a4 f2 45.c1 a2 46.b3 a8 47.g3 g7 48.xg5 e4 49.h6+ h7 50.c6 a7 51.xf7 xd7 52.e6 d6 53.xd6 xd6 54.f4 e7 55.g2 g6 56.f3 f7 57.h4 f6 58.a2 c5 59.d5 e5+ 60.e4 1.31/23 ] 42...a6 43.c1 h4 44.g1 e7 [ 1.19 Houdini 4 Pro x64 B: 44...a5 45.b2 a6 46.c2 h5 47.b5 d6 48.c8 b6+ 49.f1 f5 50.b8 g3+ 51.e1 c7 52.c8 b6 53.c1 d5 54.a4 e4 55.e8 a5+ 56.f1 c3 57.c2+ f6 58.g8 xd7 59.xg5+ e5 60.e8+ d4 61.xh4 0.63/23 ] 45.b5 [ 0.75 Houdini 4 Pro x64 B: 45.f1 d8 46.e2 a5 47.d3 a6 48.c2 h5 49.b5 d6 50.c4 f6 51.c5 xd7 52.xd7 xd7 53.e3 c7 54.a2 e5 55.a7 b8 56.d5 f6 57.b6 f5 58.g1 1.19/23 ] 45...d6 46.c5 xd7 47.xd7 xc5+ 48.xc5 xd7 49.c6+ f6 50.f2 e5 51.c3 f5 52.e3 d7 53.b3 f8 54.b5+ g6 55.e4 e6 56.b2 f4 57.a2 e6 58.d5 f4+ 59.d6 [ 0.01 Houdini 4 Pro x64 B: 59.d4 f5 60.b2 e6+ 61.e3 f4 62.f3 d5 63.e2 f4 64.a2 d5 65.a4 f4 66.c4 e5 67.c5+ d4 68.a5 d3 69.a4+ e5 70.a2 f5 71.e3 f4 72.a5+ e6 73.f3 f5 74.a7 d3 75.e3 f4 76.f3 d3 0.72/25 ] 59...g4 60.hxg4 g5 61.e7 xg4 62.xf6 g3 63.f5 xg2 64.a3+ f2 65.g4 e3+ 66.xh4 f3 67.a4 f5+ 68.g5 e3 69.a3 e4 70.xe3+ xe3 ½-½

Gelfand,Boris Aronian,Levon Zurich CC Rapid 2014 (3) [Houdini 4]

E06 2761 2826 04.02.2014

1.d4 f6 2.c4 e6 3.f3 d5 4.g3 e7 5.g2 0-0 6.c3 [ RR 6.c2 c5 7.0-0 cxd4 8.xd4 e5 9.f5 d4 10.g5 h6 11.xe7+ xe7 12.xf6 xf6 13.d2 c6 14.a3 a5 15.c5 f5 16.a4 e7 17.e4 xe4 18.xe4 xc5 19.ac1 b6 20.c2 e7 Gelfand,B (2738)-Karjakin,S (2779) Astana 2012 0-1 (62) ] [ RR 6.c2 a6 7.bd2 bd7 8.0-0 c5 9.cxd5 xd5 10.e4 b4 11.c3 cxd4 12.xd4 e5 13.a3 bc6 14.xc6 xc6 15.e5 d4 16.c4 xc3 17.bxc3 b8 18.b1 d7 19.d1 fd8 20.e3 e8 Avrukh,B (2572)-Golod,V (2573) Acre 2013 1-0 (69) ] 6...bd7 7.b3N [ RR 7.d3 c6 8.0-0 a6 9.f4 h5 10.e3 f5 11.ad1 b5 12.c5 f6 13.f4 xf4 14.gxf4 a5 15.a3 b4 16.a2 bxa3 17.xa3 a6 18.e3 e8 19.d2 b8 20.a1 h6 21.c3 c4 Bauer,C (2634)-Timofeev,A (2637) Calvia 2007 0-1 (66) ] [ RR 7.d3 c6 8.0-0 a5 9.d1 b6 10.cxd5 cxd5 11.a3 a6 12.b5 b7 13.f4 ac8 14.a4 e4 15.h4 a5 16.g5 df6 17.f3 a6 18.fxe4 dxe4 19.xe4 xe4 20.xe4 axb5 21.axb5 b4 Kortschnoj,V (2579)-Portisch,L (2573) Paks 2004 1-0 (49) ] [ RR 7.cxd5 exd5 8.0-0 c6 9.f4 e8 10.a3 a5 11.c2 b6 12.ad1 g6 13.e5 f5 14.c1 fd7 15.h3 g5 16.e4 dxe4 17.e3 f6 18.g4 e6 19.xd7 xd7 20.xe4 d5 21.g3 f8 Darga,K-Hartoch,R Amsterdam 1969 ½-½ ] 7...b6 8.e5 [ -0.02 Houdini 4 Pro x64 B: 8.c5 bd7 9.0-0 e4 10.c2 xc3 11.xc3 b6 12.c6 f6 13.c2 e4 14.d1 a5 15.e5 f6 16.d3 d6 17.a4 e8 18.b2 f5 19.f4 g5 20.d3 a6 21.ac1 0.38/22 ] 8...b4 9.b2 e4 10.d3 f6 11.f3 e5 12.a3 xc3+ 13.xc3 xf2 14.xf2 e4 15.c2 f5 16.a2 exf3 17.exf3 dxc4 18.bxc4 e6 19.d5 f7 20.he1 [ -0.30 Houdini 4 Pro x64 B: 20.a4 c6 21.a5 cxd5 22.axb6 xb6+ 23.f1 dxc4 24.f4 fe8 25.b2 xb2 26.xb2 ed8 27.c3 d5 28.b1 b6 29.f2 xg2 30.xg2 ab8 31.hc1 b5 32.f2 a6 33.b4 f7 34.e1 e8 35.f3 bd8 0.18/21 ] 20...c6 21.b4 e8 22.xe8+ xe8 23.e1 d8 24.f4 cxd5 25.cxd5 xd5 26.xd5 xd5 27.d2 b6+ 28.e3 a6 29.g4 f7 30.d4 h6 31.e7 c6 32.g3 e8 33.xe8+ xe8 34.xa7 d5 35.c5 e6 36.e7 b6 37.c5 e6 38.e7 b6 39.c5 ½-½

Anand,Viswanathan Gelfand,Boris Zurich CC Rapid 2014 (4) [Houdini 4]

B92 2773 2761 04.02.2014

1.e4 c5 2.f3 d6 3.d4 cxd4 4.xd4 f6 5.c3 a6 6.e2 e5 7.b3 e7 8.e3 e6 9.d5 bd7 10.d3 xd5 11.exd5 0-0 12.0-0 c5 13.d2 fe4 14.b4 a5 15.c4 [ RR 15.b5 b6 16.f3 f6 17.fd1 a4 18.xc5 bxc5 19.b3 a5 20.b7 b8 21.xb8 xb8 22.c4 d7 23.ab1 axb3 24.axb3 a2 25.c3 c2 26.d2 b6 27.d3 a2 28.e4 g6 29.g4 d7 Efimenko,Z (2657)-Palac,M (2571) Warsaw 2013 ½-½ (49) ] 15...c8 16.b5N [ RR 16.xc5 xc5 17.b5 f5 18.c3 ½-½ (18) Svidler,P (2735)-Grischuk,A (2710) Poikovsky 2005 ] 16...b6 17.f3 f6 18.fd1 h5 19.g3 g6 [ 0.59 Houdini 4 Pro x64 B: 19...g5 20.f2 f6 21.g2 b8 22.a3 e8 23.ab1 cd7

24.e1 h6 25.bd1 c5 26.a4 fd7 27.f1 f5 28.d2 xd2 29.xd2 e4 30.f4 f6 -0.04/21 ] 20.xc5 [ 0.14 Houdini 4 Pro x64 B: 20.xc5 dxc5 21.d2 c4 22.xc4 c5 23.a6 b5 24.d6 xd6 25.xd6 xd6 26.d3 cc8 27.g2 g7 28.ac1 b4 29.c4 c7 30.d2 f6 31.e1 fe8 32.de2 d7 33.e4 c5 0.59/20 ] 20...bxc5 21.d2 a8 22.f4 g7 23.fxe5 dxe5 24.e3 [ -0.55 Houdini 4 Pro x64 B: 24.d3 xd5 25.c3 e4 26.c4 xc4 27.xc4 f5 28.e1 g5 29.xe4 e3+ 30.g2 d4 31.xd4 cxd4 32.d3 ab8 33.b1 fc8 34.f3 h5 35.b3 g7 36.be1 c3 37.1e2 bc8 38.f4 e3 39.xd4 xc2 0.13/21 ] 24...b8 25.c4 [ -0.71 Houdini 4 Pro x64 B: 25.d3 f5 26.ab1 xe3 27.xe3 d6 28.c3 e4 29.xa5 f5 30.a6 b6 31.c4 a8 32.c3 g7 33.a4 h5 34.f1 g5 35.g2 h4 36.g4 e3 37.b4 cxb4 38.cxb4 e5 39.gxf5 gxf5 -0.33/22 ] 25...f5 26.f2 xb2 27.ab1 b4 28.xb4 cxb4 29.c6 d6 30.c4 bxc3 31.xc3 e4 [ -0.82 Houdini 4 Pro x64 B: 31...e7 32.xa5 e4 33.c3 b8 34.a4 e5 35.d6 xd6 36.a5 b4 37.b2 e8 38.b1 e3 39.e1 d6 40.a2 xb1 41.xb1 d4 42.d3 xe2+ 43.xe2 e5 44.a6 c5 45.g4 g7 46.g3 e4 47.e1 d4 48.g3 f6 49.h3 a7 -1.23/19 ] 32.g4 b4 [ -0.59 Houdini 4 Pro x64 B: 32...h6 33.h3 g5 34.d7 g4 35.xg4 xg4 36.f1 g5 37.d4 e5 38.xe5 xe5 39.d1 d6 40.c1 b8 41.d4 f5 42.f2 b5 43.c8+ f7 44.h8 xd5 45.xh7+ e6 46.e3 c5 47.xc5 xc5 48.f4 c2 -1.03/21 ] 33.b3 e3 [ -0.36 Houdini 4 Pro x64 B: 33...g5 34.xf5 xf5 35.d6 d8 36.a3 c5 37.xc5 xc5+ 38.g2 e3 39.d3 c6+ 40.g1 b6 41.e2 g7 42.d7 c5 43.d3 c1+ 44.g2 xd7 45.xd7 c6+ 46.g1 xd7 47.xe3 d1+ 48.g2 c2+ 49.h3 b2 50.g4 a4 51.g3 b3 52.f2 xe3+ 53.xe3 f6 54.e4 g5 55.h3 h4 -0.94/20 ] 34.xe3 xe3 35.xe3 e8 36.d4 d6 37.g2 c7 38.d2 h5 39.e2 xe2+ 40.xe2 c2 41.c4 d2 42.a4 e3 43.d3 e5 44.f3 g7 45.d1 h4 46.f3 hxg3 47.hxg3 d4 48.g4 d2+ 49.f1 c5 50.b3 c1+ 51.e2 b2+ 52.d1 b4 53.e3 d6 54.c2 a1+ 55.e2 h1 56.c3+ g8 57.c8+ g7 [ -0.10 Houdini 4 Pro x64 B: 57...f8 58.b3 e4+ 59.d2 g7 60.c3+ h7 61.d3 b4+ 62.c2 xg4 63.d6 g2+ 64.b1 h1+ 65.c2 h2+ 66.d1 xd6 67.xf7 h1+ 68.e2 g2+ 69.d1 g4+ 70.d2 f4+ 71.c2 g2+ 72.d1 e5 73.e6 g1+ 74.e2 h2+ 75.f3 g7 76.c4 f4+ 77.e2 g4+ 78.e3 f4+ 79.e4 h2+ -0.68/24 ] 58.c3+ g8 59.c8+ g7 [ -0.10 Houdini 4 Pro x64 B: 59...f8 60.b3 g2+ 61.d3 f3+ 62.c2 e2+ 63.b1 d2 64.e8 b4 65.b5 e1+ 66.c2 f2+ 67.b1 g7 68.e8+ h7 -0.69/23 ] 60.c3+ h7 61.f3 h2+ 62.d3 g8 63.e4 b4 64.c4 c7+ 65.b5 b7+ 66.c4 c8+ 67.d3 [ -1.08 Houdini 4 Pro x64 B: 67.b5 a8 68.b6 b8+ 69.c6 f8 70.d1 c8+ 71.b5 b7+ 72.c4 a6+ 73.b3 b6 74.e2 d6+ 75.c2 g7 76.c3 c5+ 77.d2 g1 78.b5 b4+ 79.c2 c5+ 80.c4 f2+ 81.b3 g3+ 82.c2 e3 83.b2 -0.23/22 ] 67...c3+ 68.e2 e1+ [ -0.26 Houdini 4 Pro x64 B: 68...d2+ 69.f1 c5 70.e2 xd5 71.e4 g5 72.e2 f6 73.f3 b2 74.e4 b4 75.f3 f6+ 76.g2 c5 77.h3 f2 78.d3 f4 79.e4 h6+ 80.g3 d6+ 81.f3 h2 82.d3 c5 83.e8+ g7 84.e1 d6 85.e4 g3+ 86.e2 c5 87.c4 c3 88.d5 g3 89.c4 c3 -1.05/22 ] 69.f3 [ -1.11 Houdini 4 Pro x64 B: 69.d3 f1+ 70.d4 f2+ 71.c4 f8 72.b3 b6 73.d3 d6+ 74.c2 c5+ 75.c4 f2+ 76.e2 e5 77.d3 g3+ 78.c2 e3 79.d3 b6 80.b3 g1 81.c4 g7 82.d3 c5+ 83.c4 e3 84.f1 f2+ 85.e2 f6 86.d3 g3+ 87.e4 e1 88.b5 f2 89.c4 g3 90.d1 g1 91.e2 f2 92.f3 b6

93.e2 b1+ 94.e3 g1+ 95.d3 b6 96.e4 b1+ -0.26/24 ] 69...f1+ 70.e3 d6 [ -0.29 Houdini 4 Pro x64 B: 70...h3+ 71.e2 h2+ 72.d3 f8 73.e3 g2 74.b3 xg4 75.e5 f3+ 76.c2 f2+ 77.b1 b6 78.h8+ e7 79.h4+ d7 80.a2 d6 81.c4 c7 82.b5 xd5+ 83.c4+ d6 84.xd5+ xd5 85.b3 f5 -0.91/21 ] 71.d4 f2+ 72.d3 b4 73.e3 g2 74.e4 d2+ 75.c4 c3+ 76.b5 c5+ 77.a6 c8+ 78.b5 d6 79.d1 c5+ 80.a6 c8+ 81.b5 h7 82.c2 [ -1.12 Houdini 4 Pro x64 B: 82.f3 b7+ 83.c4 e5 84.d3 c7 85.e3 g7 86.e1 f8 87.e3 f6 88.e4 c3+ 89.e2 e5 90.c2 e7 91.d3 b4 92.e4 xe4+ 93.xe4 d6 94.d3 h8 95.c4 g7 -0.14/23 ] 82...c5+ 83.a6 c7 84.b7 b6+ [ -0.22 Houdini 4 Pro x64 B: 84...g7 85.d3 f8 86.d6 b6+ 87.c8 b8+ 88.d7 d8+ 89.c6 xd6+ 90.b5 g7 91.c2 d8 92.d3 b6+ 93.c4 f6 94.d5 d8+ 95.c4 d6 96.b5 d8 97.c2 d7+ 98.a6 c7 99.d3 c8+ 100.b5 b8+ 101.c6 b6+ 102.d7 d6+ 103.c8 b6 104.c4 e5 105.b7 d4 106.c6 c5 107.a6 -1.13/21 ] 85.c8 d6 86.c4 b8+ 87.d7 f8 88.e4 b8 89.c4 f8 90.e4 b8 91.c4 ½-½

Caruana,Fabiano Carlsen,Magnus Zurich CC Rapid 2014 (4) [Houdini 4]

A11 2781 2872 04.02.2014

1.f3 f6 2.g3 d5 3.g2 c6 4.0-0 f5 5.d3 e6 6.c4 bd7 [ 0.44 Houdini 4 Pro x64 B: 6...dxc4 7.dxc4 xd1 8.xd1 bd7 9.c3 h6 10.f4 c5 11.a4 e7 12.ac1 0-0 13.d4 h7 14.b3 e5 15.e3 fb8 16.ac5 f5 17.xd7 xd7 18.d2 d8 19.e4 b6 0.03/21 ] [ RR 6...dxc4 7.dxc4 xd1 8.xd1 bd7 9.c3 c5 10.d4 g6 11.b3 b4 12.f4 b6 13.c5 xc3 14.bxc3 a4 15.e5 d5 16.c4 dc3 17.e1 f6 18.d6 e4 19.ad1 d8 20.f3 xd6 21.cxd6 Grigoryan,K (2604)-Wojtaszek,R (2711) Warsaw 2013 1-0 (35) ] 7.cxd5 cxd5 8.e3N [ RR 8.c3 c5 9.f4 0-0 10.a4 e7 11.b3 b6 12.ac1 d6 ½-½ (12) Dizdar,G (2465)-Georgiev,K (2545) Sarajevo 1986 ] [ RR 8.c3 c5 9.h3 h6 10.b3 b6 11.a4 c6 12.xc6 bxc6 13.a4 b6 14.b3 c5 15.xc5 xc5 16.b2 e7 17.d4 d7 18.ac1 hc8 19.c2 h7 20.fc1 c5 21.f3 c7 22.d2 e8 Miroshnichenko,E (2599)-Smeets,J (2531) Antalya 2004 1-0 (45) ] [ RR 8.b3 c5 9.b5+ fd7 10.d4 a6 11.b4 d3 12.b3 b4 13.a3 b6 14.d2 c6 15.fc1 d6 16.e3 h6 17.b1 xb3 18.axb3 e7 19.c3 b6 20.e1 g6 21.f1 hc8 22.d3 b4 Urban,K (2490)-Milov,L (2490) Germany 1998 ½-½ (37) ] 8...c5 9.xc5 xc5 10.c3 0-0 11.d2 h6 12.fc1 c8 13.b4 cd7 14.a4 e7 15.b5 a6 16.bd4 g6 17.b3 e5 18.h4 h7 19.h3 d4 20.f3 xc1+ 21.xc1 b6 22.a5 bd5 23.c5 d8 24.a1 e4 [ 0.36 Houdini 4 Pro x64 B: 24...g6 25.c2 h5 26.g2 xf3 27.xf3 c3 28.c4 b5 29.e3 dxe3 30.xe3 d6 31.c5 e8 32.g2 e4 33.dxe4 -0.09/22 ] 25.xd4 exd3 26.exd3 xd3 27.xd3 xb4 28.c3 e4 29.f5 f8 30.xb4 xc5 31.c2 d3 32.c3 [ 0.20 Houdini 4 Pro x64 B: 32.b6 h7 33.g2 c5 34.fe3 d7 35.d5 g8 36.ce3 e6 37.a7 d8 38.b6 c7 39.f3 h7 40.g2 c5 41.ed5 c6 42.b4 e6 43.xb7 d2 44.6d5 0.60/22 ] 32...g6 33.fd4 c5 34.g2 d6 35.h4 h5 36.e3 f6 37.f3 f5 38.fd4 f6 39.h2 g7

[ 0.71 Houdini 4 Pro x64 B: 39...d6 40.f4 e6 41.xe6 xe6 42.d3 e7 43.d4 d6 44.c4 d7 45.f3 g7 46.c3+ f6 47.g5 d1 48.e4 d8 49.c2 d7 50.c4 c7 51.d5 f7 52.d6 c2 53.h3 e2 0.29/24 ] 40.c3 d7 41.f4 b5 42.b4 b8 [ 4.87 Houdini 4 Pro x64 B: 42...g8 43.d5 d6 44.c6 e8 45.f3 h7 46.cb4 d8 47.g2 f5 48.h3 h6 49.c6 e8 50.db4 c5 51.e5 f8 52.e3 f6 53.c6 g7 54.d5 e7 55.d4 e6 56.xe6 xe6 57.d5 b7 58.d7+ g8 59.c5 0.89/23 ] 43.d5 b4 [ #5 Houdini 4 Pro x64 B: 43...xd5 44.xd5 d7 45.g2 g8 46.c8+ f8 47.f3 g7 48.e5 e6 49.xf7 xf7 50.d7+ e7 51.xe6+ f6 52.xe7+ xe7 53.c8 d6 54.xa6 c5 55.b7 b4 56.a6 b6 57.e4 b3 58.xg6 xa6 59.xh5 b2 60.g6 b5 61.f3 c5 62.e3 5.15/16 ] 44.f5+ 1-0

Nakamura,Hikaru Aronian,Levon Zurich CC Rapid 2014 (4) [Ramirez Alejandro,Houdini 4]

A01 2776 2826 04.02.2014

1.b3 well, it's Hikaru after all. [ -0.29 Houdini 4 Pro x64 B: 1.e4 e5 2.f3 c6 3.b5 f6 4.0-0 c5 5.c3 0-0 6.d4 b6 7.xc6 dxc6 8.a4 exd4 9.a5 c5 10.cxd4 b4 11.d3 h6 12.a6 b6 13.d2 e7 14.h3 e8 15.e5 c5 16.xb4 cxb4 0.29/22 ] 1...d5 2.e3 f6 3.b2 f5 One of the many possible set-ups. This one completely ignores the bishop on b2 but attempts to take control of the light squares of the center. [ RR 3...c5 4.f4 g6 5.b5+ d7 6.xd7+ bxd7 7.c4 dxc4 8.bxc4 g7 9.f3 0-0 10.0-0 a6 11.a4 b8 12.c3 c6 13.b1 d3 14.a3 xc4 15.xb7 d5 16.e2 xe2 17.xe2 a5 18.d7 Morozevich,A (2765)-Kramnik,V (2799) Nice 2008 ½-½ (48) ] [ RR 3...e6 4.f4 e7 5.f3 0-0 6.e2 b6 7.0-0 b7 8.e1 e4 9.c3 d6 10.g3 f5 11.h3 c6 12.d3 b4 13.xf5 exf5 14.xf5 g6 15.h3 xc2 16.h6 d4 17.e2 c5 18.ac1 Jobava,B (2705)-Tregubov,P (2625) Warsaw 2013 0-1 (101) ] 4.h3N Signaling aggression. Obviously the only point of this move is to play g4, g5 and mate Black on the kingside. [ RR 4.f4 e6 5.f3 e7 6.e2 h6 7.0-0 0-0 8.d3 h7 9.e1 fd7 10.c3 c5 11.e4 d4 12.d1 c6 13.f2 f5 14.c1 e5 15.exf5 exf4 16.xf4 xf5 17.d2 f6 18.h4 h7 Minasian,A (2530)-Boensch,U (2490) Munich 1993 1-0 (57) ] [ RR 4.f3 e6 5.e2 h6 6.0-0 bd7 7.d3 e7 8.bd2 0-0 9.c4 c6 10.a3 a5 11.c2 h7 12.c3 e8 13.b4 f6 14.fc1 d6 15.xf6 xf6 16.cxd5 exd5 17.b3 axb4 18.axb4 b5 Markowski,T (2470)-Kuczynski,R (2510) Warsaw 1995 1-0 (52) ] [ RR 4.f4 g6 5.f3 g7 6.g3 0-0 7.g2 c5 8.0-0 c6 9.e5 xe5 10.xe5 e4 11.c3 xg2 12.xg2 d4 13.exd4 cxd4 14.xf6 exf6 15.e4 d3 16.c3 b5 17.f3 f5 18.f2 b4 Marin,M (2543)-Dreev,A (2697) playchess.com INT 2006 ½-½ (45) ] 4...h6 5.f3 e6 6.c4 e7 7.g4 [ -0.44 Houdini 4 Pro x64 B: 7.c3 0-0 8.d4 a5 9.e2 c6 10.0-0 e4 11.a3 xc3 12.xc3 d7 13.d3 e4 14.c2 f5 15.e2 a4 16.b4 ad8 17.xe4 fxe4 0.10/20 ] 7...h7 8.g1 bd7 [ -0.02 Houdini 4 Pro x64 B: 8...c6 9.d3 0-0 10.g5 hxg5 11.xg5 f5 12.a3 e8 13.f3 f6 14.xf6 xf6 15.bd2 d6 16.c1 d4 17.e4 g6 18.a4 h5 19.c5 e5 20.e2 xf3 21.xf3 xf3+ 22.xf3 -0.53/20 ] 9.cxd5 exd5 10.h4 If you say a, you must say b. e4!? Aronian isn't one to shy away from complications. 11.g5

[ 11.xg7 11...hxg5 -0.44 g8 12.b2 ( 12.xh6? 12...f6 0.02 xh4-+ White cannot defend the f2 pawn and the threat of Qf6. ) 12...f6!? 13.c3 e5 with a complex game. It's also possible for Black to take the h4 pawn and that's also not easy to assess. ] 11...hxg5 12.hxg5 0-0!? Castling into it to defend the pawn! The h-file being open is scary, but can White really transfer pieces that way? 13.d3 b4+ [ 0.25 Houdini 4 Pro x64 B: 13...ec5 14.c2 d6 15.h1 e6 16.c3 xg5 17.xg5 xg5 18.0-0-0 c6 19.f4 g6 20.b1 ae8 21.e2 f6 22.g1 h6 23.d2 f5 24.d4 g6 25.f3 h5 -0.33/20 ] 14.bd2 xd2 15.xd2 c5 The point of this move is to seal in the bishop with d4 at some point. 16.a3 xd2+ 17.xd2 e8 18.f4 b6 19.f2 [ 19.g6 immediately was much better A) 19...xg6 20.f5 xf5 ( 0.19 Houdini 4 Pro x64 B: 20...d4 21.fxg6 xe3+ 22.e2 ae8 23.gxf7+ xf7 24.g2 xb3 25.f1 d5 26.e1 h8 27.g1 e5 28.f1+ e6 29.d1 h4 30.c1 eh3 31.f2 d6 32.fg1 f7+ 33.e1 e6 34.f1 h1 35.g3 f6+ 36.f3 xg1+ 37.xg1 xf3+ 38.xf3 xf3 39.xf3 h8 40.f2 -0.21/18 ) 21.xg7+ f8 doesn't look like what a huamn would do, but Black might be ok.; B) 19...fxg6 20.f2 and now White's setup makes more sense. ] 19...xb3 20.g6? Overly optimistic, perhaps missing Black's 21st move. [ -0.51 Houdini 4 Pro x64 B: 20.e2 e6 21.g3 d4 22.exd4 cxd4 23.xd4 d5 24.b4 ae8 25.g4 f5 26.f3 d6 27.xd6 xd6 28.xa7 b6 29.gg1 xd3 30.gd1 b3 31.a4 c5 32.a5 e4 33.e2 d3 34.f3 e4 35.e2 -0.10/20 ] 20...xg6 21.f5 [ -1.16 Houdini 4 Pro x64 B: 21.g5 b6 22.c1 ad8 23.g2 d4 24.e4 h7 25.f3 e6 26.cg1 g6 27.f5 xg5 28.xg5 f6 29.xf6 xf6 30.c1 e8 31.f4 b5 32.e2 a5 33.d2 a8 34.e5 c8 35.b7 c7 36.e4 e7 -0.42/20 ] 21...d4! 22.e4 [ 22.exd4 22...h5 -0.58 xf5 23.dxc5 g6 should be very bad for White who is down a pawn and has an exposed king, whereas Black's own monarch is starting to feel comfortable. ] [ -0.58 Houdini 4 Pro x64 B: 22.exd4 xf5 23.dxc5 g6 24.c1 ac8 25.g5 b6 26.cxb6 xb6+ 27.g2 f8 28.g4 a5 29.h1 e6 30.e1 b3 31.e5 c5 32.d4 d7 33.g3 b6 34.f4 xe5 35.xe5 cd8 36.xe8+ xe8 37.g2 b2 38.d6 d2 39.h2 e4 40.h3 -1.30/22 ] 22...xf5? Way too aggressive. [ 22...h5 23.exf5 -0.19 23.g5 g6! And Black's kingside will hold. ] [ -0.19 Houdini 4 Pro x64 B: 22...h5 23.g5 g6 24.b1 e7 25.c1 a4 26.xh5 gxh5 27.g5+ f8 28.e2 c2 29.g1 e8 30.xh5 e5 31.g8+ d7 32.xa8 xb2 33.h8 xd3+ 34.g3 xe2 35.d8+ c6 36.xe7 e1+ 37.g2 d2+ 38.g3 e3+ 39.h4 h6+ 40.g3 b6 41.xf7 g5+ 42.h2 h4+ 43.g2 xe4+ 44.g3 e1+ 45.h3 e3+ 46.h4 h6+ 47.g3 g5+ 48.h2 h4+ 49.g2 g4+ 50.h2 f4+ 51.g2 g4+ 52.h2 -0.58/19 ] 23.exf5 e3 [ 0.16 Houdini 4 Pro x64 B: 23...e5 24.g5 e3 25.c1 ae8 26.b2 xb2+ 27.xb2 8e5 28.b1 f6 29.g3 xf5+ 30.g2 xg3+ 31.xg3 g5+ 32.f2 e5 33.e2 g4+ 34.xg4 xg4 35.h1 f4+ 36.g3 f5 37.c1 f7 38.g4 f2 39.h7 e6 -0.27/19 ] 24.b1! The only move, but sufficient. Here Nakamura defends his bishop and threatens Bxd4. d5 [ 24...ae8 25.xg7+ 0.20 25.xd4 xb1 26.xe3+- ] 25.xg7+! The point! f8 26.g2 [ -0.20 Houdini 4 Pro x64 B: 26.g1 e5 27.g2 xg2+ 28.xg2 xd3 29.xd3 xd3 30.c1 b6 31.f4 e7 32.e1+ d7 33.f6 e8 34.xe8 d1+ 35.h2 xe8 36.e2+ f8 37.e7 g8 38.g2 a6 39.b7 b5 40.f3 d3+ 41.e4 xa3 42.d5 f3 0.55/19 ] 26...e5 [ 26...ae8 was perhaps better. ] 27.d1 e8 28.c1 b6!? Played after a long think. [ 28...f3!? 29.xe3 dxe3+ 30.g3 e5+ 31.xf3 xf5+ should end in a perpetual. ]

29.h5 [ 29.xe3 29...f3+ -0.47 dxe3+ 30.g3 d6 and Black's initiative is very real. ] [ -0.47 Houdini 4 Pro x64 B: 29.g3 xg3 30.xg3 f6 31.e2 e7 32.f3 a2 33.b2 g8+ 34.f2 f7 35.f4 h7 36.xe5 fxe5 37.h1 xf5 38.h4+ d6 39.e2 f8 40.e4 f4 41.xf4 xf4 42.g2 h4 43.b1 h2 44.f3 e6 45.g3 h8 46.e4 g8+ 47.f3 f8+ 48.e2 h8 49.g1 h2+ 50.f3 h3+ 51.g4 0.20/19 ] 29...f3+? The endgame is not good for Black. [ 29...f3+! 30.xf3 0.16 30.g1 xf5! 31.h6+ e7 32.xf5! f3+ 33.xf3 xf3 34.e2 with a strange to evaluate position. I like White, but that's a lot of pawns. ] [ 0.16 Houdini 4 Pro x64 B: 29...f3+ 30.g1 xf5 31.h6+ e7 32.xf5 f3+ 33.xf3 xf3 34.e2 h3 35.f4 d8 36.g3 e6 37.g4 f5 38.h3 g8 39.g5 xg5+ 40.xg5+ c7 41.f1 a5 42.f2 b5 43.e1 a2+ 44.e2 xa3 45.f4+ d8 46.xf5 c4 47.dxc4 bxc4 48.e4 c5 49.e5 -0.47/20 ] 30.xf3 xf3+ 31.g1 xf5 32.f2 Now white's advantage is stable, the pair of bishops are very powerful and the knight on e5 will not be stable. h5 33.f4 e6 34.e2 h3 35.d1 e7 36.g2 h8 37.h2 g6+ 38.f1 f6 39.e1 g4 [ 39...hg8 40.xe5 fxe5 41.f3 looks very ugly. No one wants to have all of his pawns blockaded. ] 40.xg4 xg4 41.d2 g6 42.a4 hg8 43.e1+ d7 44.ee2 c6 [ 1.06 Houdini 4 Pro x64 B: 44...h8 45.f5 c6 46.f4 h7 47.f1 d5 48.f4 c4 49.dxc4+ xc4 0.41/24 ] 45.c2 f5 46.b3 f8?! Making White's life a little easier. [ 1.78 Houdini 4 Pro x64 B: 46...8g7 47.xf5 g2 48.f6+ b7 49.fe6 xe2 50.xe2 a6 51.c4 a5 52.b2 h7 53.f4 h1 54.d2+ a6 55.a5 a1 56.axb6 axb6 57.d5 b7 58.g5 a3 59.e4 c3 60.d2 a3 61.f4 a6 62.h2 b5 63.h6+ a5 64.h5 b6 65.c1 a1 1.01/24 ] 47.e7 f4 48.xa7 e6 [ 3.51 Houdini 4 Pro x64 B: 48...d5 49.xf4 xf4 50.xf4 f6 51.d2 f2 52.c2 c6 53.h7 d6 54.h6+ c7 55.e6 b7 56.d6 c7 57.g6 h2 58.d1 b7 59.h6 g2 60.f6 g3 61.e2 g2+ 62.f2 xf2+ 63.xf2 c6 64.f3 d5 65.f4 c4 66.dxc4+ xc4 2.07/26 ] 49.c4 [ 2.04 Houdini 4 Pro x64 B: 49.xf4 xf4 50.xf4 f6 51.b8 f1 52.c7+ d5 53.a7 a1 54.g7 e5 55.h7 b1+ 56.c2 b4 57.a5 bxa5 58.h5+ e6 59.xc5 a4 60.c4 a2+ 61.b3 d2 62.xd4 a4+ 63.b4 c2 64.e4+ d5 65.e3 a2 66.e8 a1 67.d8+ c6 68.a8 b1+ 69.c4 e1 70.a6+ b7 71.b6+ c7 3.51/23 ] 49...e1 50.xf4 White's up too much material. c1+ 51.xc1 xf2 52.b3 f3 53.c2 c4! Still fighting, but insufficient. [ 2.68 Houdini 4 Pro x64 B: 53...f2+ 54.d2 g2 55.f7 d6 56.f6+ c7 57.h6 f2 58.e6 g2 59.f6 h2 60.g6 b7 61.e6 g2 62.e5 c6 63.f5 d6 64.f6+ c7 1.84/26 ] 54.dxc4 c3+ 55.b2 xc4 56.d2 d3 57.b3 c2 [ 3.36 Houdini 4 Pro x64 B: 57...e4 58.c3 e5 59.h7 e4 60.h6+ b7 61.b3 d4 62.h2 c6 63.c3 d5 64.c4 d8 65.d2 d5 66.f2 d6 67.e3 b7 68.b2 a6 69.d2 d8 70.b5 b7 71.c3 a8 72.b4 d8 73.a5 d6 74.b5 a6 2.71/26 ] 58.f4 f2 59.c7+ d5 60.d7+ c6 61.c7+ d5 62.e3 f1 63.d7+ e4 64.xb6?? This leads to a drawn endgame! [ 64.d2 64...b1+ 0.01 and the d3 pawn will fall eventually. ] [ 0.01 Houdini 4 Pro x64 B: 64.d2 f6 65.e7+ d5 66.c3 f1 67.d7+ c6 68.xd3 a1 69.b3 b1+ 70.c2 a1 71.d4 g1 72.b4 g3 73.c3 g5 74.b3 d5 75.h4 d3 76.c4 d5 77.b3 d3 3.49/25 ] 64...b1+ 65.c4 xb6 66.xd3 [ 1 Houdini 4 Pro x64 B: 66.e7+ f5 67.xd3 -0.01/27 ] 66...a6?? Returning the favor, to be fair both players had seconds on the clock at this point. [ 66...c6+! 67.a3 9 67.b5 c1! 68.b3 ( 68.d8 b1+ 69.a6 e5 Black's king is not

cut off by enough files. This endgame is a draw. ) 68...d5 is a drawn endgame. ] [ 1 Houdini 4 Pro x64 B: 66...c6+ 0.00 ] 67.a3 Now this is losing. a5 68.b4 a8 69.c5 c8+ 70.b6 d5 71.a5 d6 72.d3+ e7 73.a6 b8+ 74.c7 b1 75.e3+ f7 76.a3 c1+ 77.b6 b1+ 78.a5 A thrilling game! 1-0

Aronian,Levon Caruana,Fabiano Zurich CC Rapid 2014 (5) [Houdini 4]

A80 2826 2781 04.02.2014

1.f3 d6 2.d4 f5 [ 0.53 Houdini 4 Pro x64 B: 2...f6 3.c3 f5 4.e3 e6 5.d3 xd3 6.xd3 a6 7.0-0 e7 8.e4 0-0 9.d5 bd7 10.e3 e5 11.h3 h6 12.ad1 b5 13.b4 b8 14.e2 0.16/21 ] 3.f4 f6 4.e3 g6 [ 0.52 Houdini 4 Pro x64 B: 4...e6 5.h3 e7 6.d3 0-0 7.0-0 bd7 8.c4 e4 9.bd2 df6 10.c2 xd2 11.xd2 d7 12.b4 e4 13.c2 g5 14.h2 a5 15.b5 0.16/20 ] 5.h3 g7 6.e2N [ RR 6.bd2 c6 7.c3 0-0 8.b3+ h8 9.0-0-0 e8 10.d5 a5 11.a3 b6 12.b3 e4 13.g3 xg3 14.fxg3 e6 15.xa5 bxa5 16.xa5 c6 17.dxc6 xc6 18.b4 d5 19.h4 d7 20.d4 c8 Hodgson,J (2535)-Gurevich,M (2640) Haifa 1989 0-1 (39) ] [ RR 6.c4 e6 7.bd2 c6 8.c3 e7 9.h2 d7 10.e2 0-0 11.0-0 h8 12.a4 g8 13.c2 h6 14.e4 e5 15.dxe5 xe5 16.xe5 dxe5 17.fe1 ad8 18.c4 g7 19.ad1 e8 20.exf5 xf5 Hansen,L (2460)-Vasiukov,E (2545) Graested 1990 1-0 (63) ] 6...0-0 7.0-0 e6 8.h2 c6 9.bd2 e7 10.c3 b6 11.b4 a5 12.b3 b7 13.a3 h6 [ 0.34 Houdini 4 Pro x64 B: 13...d8 14.b5 a4 15.b2 f7 16.ac1 fc8 17.fe1 d8 18.ed1 e8 19.c4 d7 20.b1 g5 21.bd2 e4 22.xe4 fxe4 23.d2 c5 24.c2 -0.05/21 ] 14.c4 d8 15.c5 axb4 16.axb4 f7 17.h4 h7 18.cxd6 cxd6 19.c4 d5 20.b2 e4 21.f3 b7 22.b5 fc8 23.xa8 xa8 24.a1 xa1+ 25.xa1 c7 26.fd2 xd2 27.xd2 e5 28.f3 xf3 29.xf3 c4 30.f1 b4 31.h1 g5 32.xg5+ hxg5 33.dxe5 dxe5 34.f3 e4 35.fxe4 xe4 36.c1 e5 37.c6 b1+ 38.g1 g3 39.d7+ h6 40.d4 h7 41.d7+ h6 42.d4 h7 ½-½

Carlsen,Magnus Anand,Viswanathan Zurich CC Rapid 2014 (5) [Houdini 4]

C67 2872 2773 04.02.2014

1.e4 e5 2.f3 c6 3.b5 f6 4.0-0 xe4 5.e1 d6 6.xe5 e7 7.f1 xe5 8.xe5 0-0 9.d4 f6 10.e1 e8 11.c3 xe1 12.xe1 e8 13.f4 d5 14.d3 g6 15.d2 g7 16.f3 f5 17.xf5 xf5 18.e2 c6 19.e1 g7 20.e5 e6 21.xf6 xf6 22.e5 e8 23.g4 d8 24.e5 g7 25.xe8+ xe8 26.xe8+ xe8 27.f6+ f8 28.xe8 xe8 29.f4 f5 30.f2 f7 31.b4 b5 32.g3N [ RR 32.h3 h6 33.h4 h5 ½-½ (33) Carlsen,M (2870)-Anand,V (2775) Chennai 2013 ] 32...f6 33.f3 e6 34.e3 f6 35.f3 e6 ½-½

Gelfand,Boris Nakamura,Hikaru Zurich CC Rapid 2014 (5) [Houdini 4]

A80 2761 2776 04.02.2014

1.d4 f5 [ 0.47 Houdini 4 Pro x64 B: 1...f6 2.c3 d5 3.f4 f5 4.e3 e6 5.d3 xd3 6.cxd3 d6 7.ge2 c6 8.0-0 0-0 9.c1 a6 10.a3 h6 11.h3 d7 12.b4 ad8 13.c2 e7 14.e5 0.04/22 ] 2.c3 d5 3.f4 f6 4.e3 [ 0.13 Houdini 4 Pro x64 B: 4.b5 a6 5.e3 e6 6.f3 b4+ 7.c3 e7 8.e2 c6 9.a3 e4 10.c2 0-0 11.e5 g5 12.xa6 gxf4 13.d3 fxe3 14.xe3 b6 15.b1 a5 16.0-0 xa2 17.f3 d6 18.b3 a5 19.d2 0.57/21 ] 4...a6 5.f3 e6 6.d3 c5 7.dxc5N [ RR 7.0-0 c4 8.e2 c6 9.e5 d6 10.a4 xe5 11.dxe5 d7 12.h5+ g6 13.f3 cxe5 14.xd5 exd5 15.xd5 e7 16.fd1 f7 17.xc4 de5 18.c3 0-0 19.b6 b8 20.d5 d6 21.c7 f6 Dzagnidze,N (2557)-Muzychuk,A (2566) Beijing 2013 1-0 (47) ] 7...xc5 8.0-0 c6 9.e2 0-0 10.c4 b4 11.c3 xd3 12.xd3 dxc4 13.xc4 e7 14.ac1 d7 15.e5 b5 16.b3 fc8 17.xd7 xd7 18.fd1 f7 19.a4 b4 20.e2 a5 21.h3 h6 22.e5 d7 23.g3 f8 24.d4 e5 25.xf7+ xf7 26.xc8 xc8 27.xf5 e6 28.e4 c2 29.d5 c5 30.e3 b6 31.d8 e7 32.e8 f7 33.b8 xa4 34.d5 f6 35.b7+ g6 36.f4 [ -1.07 Houdini 4 Pro x64 B: 36.h2 xb2 37.f4 exf4 38.xf4+ h7 39.e6 c6 40.e5 xe6 41.exf6 g8 42.xg7+ f8 43.a7 c4 44.c7 e5 45.b7 c6 46.h4 a4 47.f2 xf6 48.c5+ e8 49.xb4 xb4 50.xb4 a6 51.b2 a3 52.a2 d7 53.g3 c6 54.f4 d5 55.g4 d4 56.f5 a8 57.e6 c4 58.d6 d8+ 59.e6 e8+ 60.d6 -0.67/22 ] 36...exf4 37.xf4+ h7 38.e6 c6 [ -0.04 Houdini 4 Pro x64 B: 38...c1+ 39.h2 xb2 40.d6 e1 41.xg7 g6 42.f5 f6 43.e7+ xe7 44.xe7 c3 45.e6+ f7 46.e7+ f6 47.e5+ f5 48.b7 e2 49.g3 d2 50.b8 d5 51.b5 e6 52.xa5 b3 53.a6 a2 54.c6 d7 55.c5 b2 56.b5 c3 57.b7+ e6 58.e7+ d5 -1.13/21 ] 39.e5 g5 40.xg7 c5 41.a7 g6 42.e8 a4 43.h4 [ -0.93 Houdini 4 Pro x64 B: 43.f2 f4 44.xc5 xc5 45.xa4 g3 46.a1 b3 47.f1 xe5 48.a6+ g5 49.d6 xd6 50.xd6 c2 51.b6 xb2 52.e1 f4 53.d1 h5 54.c1 c2+ 55.b1 xg2 56.b4+ f5 57.xb3 f4 58.b5 h4 59.b4+ g3 60.b3+ f2 -0.26/21 ] 43...e3+ 44.h2 [ -1.36 Houdini 4 Pro x64 B: 44.f2 xf2+ 45.xf2 f5 46.e7 e4 47.d6+ d5 48.e3 a3 49.bxa3 b3 50.b5 b2 51.c3+ c4 52.b1 b3 53.f7 c2 54.f1 e6 55.d4 d3 56.a4 xe5 57.a3+ b3 58.b1 c4 59.g4 d6+ 60.c5 d3 61.e1 a3 62.xa3 xa3 63.g5 hxg5 64.hxg5 g3 65.d4 xg5 -0.86/19 ] 44...a3 45.bxa3 b3 46.h5+ [ -2.39 Houdini 4 Pro x64 B: 46.g7+ f5 47.e6 xe6 48.c7+ f5 49.d5 e4 50.xe3 xe3 51.e5 d3 52.g3+ e4 53.a1 d3 54.g4+ f5 55.g8 c2 56.g3 b2 57.xb2 xb2 58.a4 a2 59.a8 c5 60.a5 e4+ 61.h3 a3+ 62.h2 c5 63.h8 -0.87/19 ] 46...xh5 47.e6 [ -6.56 Houdini 4 Pro x64 B: 47.a5 b6 48.e6 b2 49.f6+ g6 50.e7 e6 51.b5 xf6 52.h4+ g5 53.xg5+ hxg5 54.xb2 xe7 55.b5 e5 56.a5 f5 57.a4 f4 58.a7 e2 59.f7+ g4 60.c7 d3 61.c3 e5 62.a5 a2 63.g3+ f4 -2.35/21 ] 47...xe6 48.b7 b6 49.xb6 0-1